Back to work blues you're feeling are real, and treatable

By Jen Christensen, CNN

Updated 1623 GMT (0023 HKT) September 4, 2017

Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

<strong>Seoul:</strong> This spectacular illumination is part of the annual Seoul Christmas Festival, on until January 2, 2018.

Photos: See 90 great images from spots around the world in 2017

Seoul: This spectacular illumination is part of the annual Seoul Christmas Festival, on until January 2, 2018.

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<strong>Harbin, China:</strong> The Harbin International Snow and Ice Festival, famed for its gigantic illuminated sculptures, is about to kick off in northern China. This construction photo was taken on December 16.

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Harbin, China: The Harbin International Snow and Ice Festival, famed for its gigantic illuminated sculptures, is about to kick off in northern China. This construction photo was taken on December 16.

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<strong>Ostholstein, Germany:</strong> A man photographs crows on the edge of the Baltic Sea at northern Germany's Timmendorfer Strand.

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Ostholstein, Germany: A man photographs crows on the edge of the Baltic Sea at northern Germany's Timmendorfer Strand.

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<strong>Shenyang, China: </strong>Winter swimming enthusiasts brave the cold waters of Shenyang's Beiling Park. <br />

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Shenyang, China: Winter swimming enthusiasts brave the cold waters of Shenyang's Beiling Park.

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<strong>Vaud, Switzerland:</strong> On Switzerland's Glacier 3000, high in the Swiss Alps, the Peak Walk is the world's first suspension bridge to connect two mountain peaks.

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Vaud, Switzerland: On Switzerland's Glacier 3000, high in the Swiss Alps, the Peak Walk is the world's first suspension bridge to connect two mountain peaks.

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<strong>Venice, Italy:</strong> Tourists negotiate high water in St Mark's Square on the day before Festa della Salute, a religious festival held annually in Venice in November since 1630.

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Venice, Italy: Tourists negotiate high water in St Mark's Square on the day before Festa della Salute, a religious festival held annually in Venice in November since 1630.

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<strong>Duzce, Turkey:</strong> An aerial shot shows November's autumnal colors in the Duzce region of Turkey. <br />

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Duzce, Turkey: An aerial shot shows November's autumnal colors in the Duzce region of Turkey.

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<strong>Mersin, Turkey: </strong>An outdoor cafe scene in southern Turkey's port city of Mersin. The city is named after the aromatic plant Myrsine, which flourishes in the area.

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Mersin, Turkey: An outdoor cafe scene in southern Turkey's port city of Mersin. The city is named after the aromatic plant Myrsine, which flourishes in the area.

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<strong>Srinagar, Kashmir Valley:</strong> Rich November colors in the Nishat Bagh Mughal garden in Srinagar. The trees are chinar, or oriental plane, an indigenous variety of maple. <br />

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Srinagar, Kashmir Valley: Rich November colors in the Nishat Bagh Mughal garden in Srinagar. The trees are chinar, or oriental plane, an indigenous variety of maple.

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<strong>Niagara Falls, Canada: </strong>Tourists put their rain ponchos to the test while riding a ferry on the Ontario side of Niagara Falls on an October day in 2017.

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Niagara Falls, Canada: Tourists put their rain ponchos to the test while riding a ferry on the Ontario side of Niagara Falls on an October day in 2017.

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<strong>Dunhuang, China: </strong>A camel train moves through the Gobi Desert. Dunhuang, in northwest China's Gansu Province, is renowned for the beauty of the Singing Sand Dune (Mingsha Hill) and Crescent Spring scenic area. <br />

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Dunhuang, China: A camel train moves through the Gobi Desert. Dunhuang, in northwest China's Gansu Province, is renowned for the beauty of the Singing Sand Dune (Mingsha Hill) and Crescent Spring scenic area.

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<strong>Evora, Portugal: </strong>The southern Portuguese city of Evora, whose historic center is a UNESCO World Heritage site, is a key stop on the <a href="http://cnn.com/travel/article/wine-trail-destinations/index.html">Alentejo wine route</a>. <br />

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Evora, Portugal: The southern Portuguese city of Evora, whose historic center is a UNESCO World Heritage site, is a key stop on the Alentejo wine route.

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<strong>Antarctic Peninsula:</strong> Polar ice is photographed from NASA's Operation IceBridge research aircraft, which in October 2017 was conducting research flights over West Antarctica to monitor ice loss in the region. <br />

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Antarctic Peninsula: Polar ice is photographed from NASA's Operation IceBridge research aircraft, which in October 2017 was conducting research flights over West Antarctica to monitor ice loss in the region.

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<strong>Mount Chimborazo, Ecuador:</strong> Vicunas -- believed to be the wild ancestors of domesticated alpacas -- are pictured in front of Mount Chimborazo, which, when measured by distance from the Earth's center rather than distance from sea level, is the highest point on Earth.

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Mount Chimborazo, Ecuador: Vicunas -- believed to be the wild ancestors of domesticated alpacas -- are pictured in front of Mount Chimborazo, which, when measured by distance from the Earth's center rather than distance from sea level, is the highest point on Earth.

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<strong>Baku:</strong> A man strolls through downtown Baku. East meets west in the capital of Azerbaijan where Soviet apartment blocks rub shoulders with glistening modern skyscrapers.

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Baku: A man strolls through downtown Baku. East meets west in the capital of Azerbaijan where Soviet apartment blocks rub shoulders with glistening modern skyscrapers.

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<strong>Paris: </strong>While November 2017 saw the announcement that Paris is to axe its Grande Roue ferris wheel, one landmark remains constant. The Eiffel Tower has been drawing visitors since its opening in 1889.

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Paris: While November 2017 saw the announcement that Paris is to axe its Grande Roue ferris wheel, one landmark remains constant. The Eiffel Tower has been drawing visitors since its opening in 1889.

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<strong>Mù Cang Chải, Vietnam:</strong> The landscape of Mù Cang Chải is spectacularly shaped by its terraced rice fields. The raised steps enable even distribution of water.

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Mù Cang Chải, Vietnam: The landscape of Mù Cang Chải is spectacularly shaped by its terraced rice fields. The raised steps enable even distribution of water.

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<strong>Munich, Germany: </strong>The 184th<strong> </strong>Oktoberfest beer festival was in full swing in September and October, drawing thousands of revelers to the German city.

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Munich, Germany: The 184th Oktoberfest beer festival was in full swing in September and October, drawing thousands of revelers to the German city.

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<strong>Karangasem, Bali:</strong> A man keeps an eye on the active and threatening Mount Agung volcano.

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Karangasem, Bali: A man keeps an eye on the active and threatening Mount Agung volcano.

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<strong>Xinghua, China:</strong> Farmers harvest rice crops using combines in eastern Jiangsu province.

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Xinghua, China: Farmers harvest rice crops using combines in eastern Jiangsu province.

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<strong>New Delhi:</strong> People light fireworks for Diwali, dubbed the "festival of lights," one of India's most important celebrations.

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New Delhi: People light fireworks for Diwali, dubbed the "festival of lights," one of India's most important celebrations.

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<strong>Whitby, UK:</strong> Whitby Abbey in North Yorkshire, England, is lit up to celebrate Halloween.

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Whitby, UK: Whitby Abbey in North Yorkshire, England, is lit up to celebrate Halloween.

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<strong>Pentyrch, UK: </strong>A man and his dog walk at dawn through the Welsh countryside on the first day of September.

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Pentyrch, UK: A man and his dog walk at dawn through the Welsh countryside on the first day of September.

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<strong>Selçuk, Turkey: </strong>The Library of Celsus was built in the ancient city of Ephesus -- now modern-day Turkey -- circa 114-117 CE. The facade was re-erected by archaeologists in the 1970s.

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Selçuk, Turkey: The Library of Celsus was built in the ancient city of Ephesus -- now modern-day Turkey -- circa 114-117 CE. The facade was re-erected by archaeologists in the 1970s.

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<strong>Whitley Bay, UK:</strong> St Mary's Lighthouse is seen from Whitley Bay, a seaside town in Northumberland on England's northeast coast.

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Whitley Bay, UK: St Mary's Lighthouse is seen from Whitley Bay, a seaside town in Northumberland on England's northeast coast.

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<strong>Guinan, China: </strong>Sheep are herded along a roadway in Guinan County, in northwest China's Qinghai Province. September is an annual migration time for the animals in Guinan.

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Guinan, China: Sheep are herded along a roadway in Guinan County, in northwest China's Qinghai Province. September is an annual migration time for the animals in Guinan.

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<strong>Luxor, Egypt: </strong>The Mortuary Temple of Hatshepsut (top right) and the Ramesseum temple are seen from a hot-air balloon over the southern Egyptian town of Luxor. <br />

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Luxor, Egypt: The Mortuary Temple of Hatshepsut (top right) and the Ramesseum temple are seen from a hot-air balloon over the southern Egyptian town of Luxor.

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<strong>Paris: </strong>Tourists kiss as they take in the view from outside the Sacré-Coeur Basilica in Montmartre.

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Paris: Tourists kiss as they take in the view from outside the Sacré-Coeur Basilica in Montmartre.

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<strong>Toliara, Madagascar: </strong>Wooden fishing boats are seen on Ifaty beach in Toliara, at the southernmost tip of Madagascar.

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Toliara, Madagascar: Wooden fishing boats are seen on Ifaty beach in Toliara, at the southernmost tip of Madagascar.

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<strong>Congjiang, China:</strong> The colors of the terraced fields of Congjiang, in southwest China's Guizhou Province, are at their best in the fall. <br />

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Congjiang, China: The colors of the terraced fields of Congjiang, in southwest China's Guizhou Province, are at their best in the fall.

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<strong>Phaphamau, India:</strong> In September, a Hindu devotee performs Pind Daan rituals for the soul of ancestors in the river Ganges at Phaphamau in Allahabad, India.

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Phaphamau, India: In September, a Hindu devotee performs Pind Daan rituals for the soul of ancestors in the river Ganges at Phaphamau in Allahabad, India.

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<strong>Barcelona, Spain: </strong>Camp Nou, the home stadium of FC Barcelona since 1957, is lit up for a soccer match between Spanish teams Barcelona FC and SD Eibar in September. <br />

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Barcelona, Spain: Camp Nou, the home stadium of FC Barcelona since 1957, is lit up for a soccer match between Spanish teams Barcelona FC and SD Eibar in September.

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<strong>Marsala, Italy: </strong>The sun sets over a windmill in the Sicilian coastal town of Marsala, famous for its wine. <br />

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Marsala, Italy: The sun sets over a windmill in the Sicilian coastal town of Marsala, famous for its wine.

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<strong>Weymouth, UK:</strong> Participants compete in the IRONMAN 70.3 Weymouth race in Dorset, England, on September 17.

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Weymouth, UK: Participants compete in the IRONMAN 70.3 Weymouth race in Dorset, England, on September 17.

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<strong>Laoting, China: </strong>An aerial view of the Dutch-style overwater cabins at the Yue Tuo Island Resort in northeast China.

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Laoting, China: An aerial view of the Dutch-style overwater cabins at the Yue Tuo Island Resort in northeast China.

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<strong>Henan, China:</strong> The pavilion atop Laojun Mountain towers over the city of Luoyang, when not obscured by clouds. The beautiful limestone peak, connected by cable car, is a popular tourist attraction in the area.

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Henan, China: The pavilion atop Laojun Mountain towers over the city of Luoyang, when not obscured by clouds. The beautiful limestone peak, connected by cable car, is a popular tourist attraction in the area.

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<strong>Anhui, China: </strong>Thousands of impounded bicycles from cycle rental operators are crammed into a compound in the Luyang district of central China's Hefei city. Chinese authorities have issued new guidelines in an attempt to control booming bike sharing services.

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Anhui, China: Thousands of impounded bicycles from cycle rental operators are crammed into a compound in the Luyang district of central China's Hefei city. Chinese authorities have issued new guidelines in an attempt to control booming bike sharing services.

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<strong>Québec, Canada: </strong>The remote Gaspe Peninsula is known for its pine forests, impressive cliffs as well as 14 lighthouses.

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Québec, Canada: The remote Gaspe Peninsula is known for its pine forests, impressive cliffs as well as 14 lighthouses.

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<strong>Kamchatka, Russia: </strong>The sun shines over Verblyud Mountain. The mountain got its name (which means camel in Russian) because it looks "two-humped" from the side.

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Kamchatka, Russia: The sun shines over Verblyud Mountain. The mountain got its name (which means camel in Russian) because it looks "two-humped" from the side.

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<strong>Sichuan, China: </strong>An aerial view of<strong> </strong>homes at the Larung Gar Buddhist Academy, which is the largest Buddhist institute in the world. Established in 1980, Larung Gar now has around 40,000 residents, consisting of mainly apprentice monk and nuns.

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Sichuan, China: An aerial view of homes at the Larung Gar Buddhist Academy, which is the largest Buddhist institute in the world. Established in 1980, Larung Gar now has around 40,000 residents, consisting of mainly apprentice monk and nuns.

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<strong>Cairo, Egypt:</strong> Temperatures soar in the Egyptian capital in August and locals and tourists often visit the hills in southeastern Cairo to escape the heat.

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Cairo, Egypt: Temperatures soar in the Egyptian capital in August and locals and tourists often visit the hills in southeastern Cairo to escape the heat.

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<strong>Santa Ynez, California: </strong>Morning fog stretches across a mountainside Cabernet Sauvignon vineyard. California's Central Coast vineyards have bounced back this year after a worrying five-year drought.

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Santa Ynez, California: Morning fog stretches across a mountainside Cabernet Sauvignon vineyard. California's Central Coast vineyards have bounced back this year after a worrying five-year drought.

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<strong>New York:</strong> <strong> </strong>A sailboat glides across the shadows of buildings in the Hudson River at sunset on August 20, 2017 as the US prepares to witness a solar eclipse. The eclipse was witnessed across the country along apath from Oregon to South Carolina.

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New York: A sailboat glides across the shadows of buildings in the Hudson River at sunset on August 20, 2017 as the US prepares to witness a solar eclipse. The eclipse was witnessed across the country along apath from Oregon to South Carolina.

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<strong>Chateau d'Oex, Switzerland:</strong> A land art painting on a hill by French artist portrays a classic Volkswagen camper van. The artwork covers 4,200 square meters and was produced with over 400 liters of biodegradable paint to celebrate an international VW festival.

Photos: See 90 great images from spots around the world in 2017

Chateau d'Oex, Switzerland: A land art painting on a hill by French artist portrays a classic Volkswagen camper van. The artwork covers 4,200 square meters and was produced with over 400 liters of biodegradable paint to celebrate an international VW festival.

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<strong>Ontario, Canada: </strong>Approximately 12 million people visit Niagara Falls each year. The natural phenomenon consists of three waterfalls which span the international border between the US and Canada.<br />

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Ontario, Canada: Approximately 12 million people visit Niagara Falls each year. The natural phenomenon consists of three waterfalls which span the international border between the US and Canada.

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<strong>Kabanjahe, Indonesia: </strong>Mount Sinabung erupts on July 23, 2017, sending clouds of ash and smoke up to four kilometers high. The volcano lay dormant for 400 years before it began erupting again in 2010.<br />

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Kabanjahe, Indonesia: Mount Sinabung erupts on July 23, 2017, sending clouds of ash and smoke up to four kilometers high. The volcano lay dormant for 400 years before it began erupting again in 2010.

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<strong>Busan, South Korea:</strong> An aerial shot of Haeundae Beach on a busy July day in 2017. Forty minutes from downtown Busan, it's one of South Korea's most popular beaches.

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Busan, South Korea: An aerial shot of Haeundae Beach on a busy July day in 2017. Forty minutes from downtown Busan, it's one of South Korea's most popular beaches.

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<strong>Lisbon:</strong> The historic Castelo neighborhood, dominated by the Moorish castle of São Jorge, offers traditional architecture and dramatic hilltop views. <br />

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Lisbon: The historic Castelo neighborhood, dominated by the Moorish castle of São Jorge, offers traditional architecture and dramatic hilltop views.

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<strong>Venice, Italy: </strong>Fireworks explode over St Mark's Basin during celebrations to mark Redentore, an annual July thanksgiving in remembrance of the end of Venice's bubonic plague epidemic of 1575 to 1577.

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Venice, Italy: Fireworks explode over St Mark's Basin during celebrations to mark Redentore, an annual July thanksgiving in remembrance of the end of Venice's bubonic plague epidemic of 1575 to 1577.

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<strong>Loch Earn, Scotland:</strong> St Fillans locals know when it's summertime because Rob Mulholland's Mirror Man statue returns to the waters of Loch Earn for its fair-weather residency. When winter rolls around, the three-meter-tall sculpture returns to storage. <br />

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Loch Earn, Scotland: St Fillans locals know when it's summertime because Rob Mulholland's Mirror Man statue returns to the waters of Loch Earn for its fair-weather residency. When winter rolls around, the three-meter-tall sculpture returns to storage.

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<strong>Berlin:</strong> A visitor leaps across some of the 2,711 concrete blocks that make up Berlin's Holocaust Memorial, designed by architect Peter Eisenman and engineer Buro Happold.

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Berlin: A visitor leaps across some of the 2,711 concrete blocks that make up Berlin's Holocaust Memorial, designed by architect Peter Eisenman and engineer Buro Happold.

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<strong>Lampang, Thailand: </strong>Lampang's 16th-century Wat Pratu Pong temple is a fine example of the Lanna architectural style. The Lanna Kingdom covered what is now northern Thailand from the 13th to 18th centuries.

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Lampang, Thailand: Lampang's 16th-century Wat Pratu Pong temple is a fine example of the Lanna architectural style. The Lanna Kingdom covered what is now northern Thailand from the 13th to 18th centuries.

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<strong>Russkaya Bay, Russia: </strong>The fjord-like Russkaya Bay lies on the Avacha Bay on the southeast coast of the remote Kamchatka Peninsula in eastern Russia.

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Russkaya Bay, Russia: The fjord-like Russkaya Bay lies on the Avacha Bay on the southeast coast of the remote Kamchatka Peninsula in eastern Russia.

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<strong>New York City: </strong>New York's Macy's department store got through more than 60,000 fireworks during its 2017 celebrations to mark the United States' Independence Day on July 4.

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New York City: New York's Macy's department store got through more than 60,000 fireworks during its 2017 celebrations to mark the United States' Independence Day on July 4.

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<strong>Hoi An, Quang Nam, Vietnam:</strong> A trading port between the 15th and 19th centuries, Hoi An boasts an eclectic mix of historical eastern and western buildings. The well-preserved old town is a UNESCO World Heritage site.

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Hoi An, Quang Nam, Vietnam: A trading port between the 15th and 19th centuries, Hoi An boasts an eclectic mix of historical eastern and western buildings. The well-preserved old town is a UNESCO World Heritage site.

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<strong>Chefchouen, Morocco: </strong>The town of Chefchouen in Morocco's Rif Mountains is famous for its blue-washed walls and maze-like streets.

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Chefchouen, Morocco: The town of Chefchouen in Morocco's Rif Mountains is famous for its blue-washed walls and maze-like streets.

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<strong>Zaozhuang, Shandong, China:</strong> Every summer, Zaozhuang City's wetland parks, especially Honghe Wetland Park -- the biggest natural wetland in northern China -- put on a grand lotus blossom display.

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Zaozhuang, Shandong, China: Every summer, Zaozhuang City's wetland parks, especially Honghe Wetland Park -- the biggest natural wetland in northern China -- put on a grand lotus blossom display.

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<strong>Lutzow-Holm Bay, Antarctica:</strong> The Japanese icebreaker Shirase, on a mission to research global warming, glides through the waters near Lutzow-Holm Bay, Antarctica.

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Lutzow-Holm Bay, Antarctica: The Japanese icebreaker Shirase, on a mission to research global warming, glides through the waters near Lutzow-Holm Bay, Antarctica.

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<strong>Paris:</strong> In 2016, the Louvre Museum was the third <a href="http://edition.cnn.com/travel/article/most-popular-museums-world-2016/index.html">most-visited museum</a> in the world, receiving 7.4 million visitors.

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Paris: In 2016, the Louvre Museum was the third most-visited museum in the world, receiving 7.4 million visitors.

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<strong>Campo di Mare, Italy:</strong> A popular summer getaway, Campo di Mare comprises six bays including five sheltered, sandy beaches and one that is open to the Adriatic Sea.

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Campo di Mare, Italy: A popular summer getaway, Campo di Mare comprises six bays including five sheltered, sandy beaches and one that is open to the Adriatic Sea.

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<strong>Asolfsskali, Iceland:</strong> Skogafoss waterfall is one of the biggest and most popular waterfalls in southern Iceland. The majestic waterfall is often accompanied by rainbows on sunny days.

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Asolfsskali, Iceland: Skogafoss waterfall is one of the biggest and most popular waterfalls in southern Iceland. The majestic waterfall is often accompanied by rainbows on sunny days.

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<strong>Bangkok: </strong>Complex new lane markings at Bangkok's Bang Phlat intersection attracted some criticism after they were introduced at the start of May 2017.

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Bangkok: Complex new lane markings at Bangkok's Bang Phlat intersection attracted some criticism after they were introduced at the start of May 2017.

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<strong>Lamb County, Texas: </strong>This dramatic image captures cloud-to-ground lightning strikes during a supercell thunderstorm on May 9, 2017.

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Lamb County, Texas: This dramatic image captures cloud-to-ground lightning strikes during a supercell thunderstorm on May 9, 2017.

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<strong>Hitachinaka, Japan: </strong>Visitors enjoy the display of nemophila flowers at Hitachi Seaside Park in Ibaraki Prefecture. An estimated 4.5 million of the flowers bloom here during April and May.

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Hitachinaka, Japan: Visitors enjoy the display of nemophila flowers at Hitachi Seaside Park in Ibaraki Prefecture. An estimated 4.5 million of the flowers bloom here during April and May.

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Ma<strong>nchester, UK:</strong> Manchester's historic Victoria Baths opened for the first time in 24 years for a one-off public swimming event on May 14, 2017. The Victoria Baths Trust is hoping to secure funding to save and restore the Edwardian-era swimming pool and Turkish baths.

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Manchester, UK: Manchester's historic Victoria Baths opened for the first time in 24 years for a one-off public swimming event on May 14, 2017. The Victoria Baths Trust is hoping to secure funding to save and restore the Edwardian-era swimming pool and Turkish baths.

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<strong>Jakarta: </strong>Workers construct a large-scale replica of the Statue of Liberty which is due to be installed at a public park in Jakarta. The sculpture is reported to have cost around $17,000.

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Jakarta: Workers construct a large-scale replica of the Statue of Liberty which is due to be installed at a public park in Jakarta. The sculpture is reported to have cost around $17,000.

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<strong>Warrnambool, Australia: </strong>Horses and riders walk on Lady Bay beach ahead of the Warrnambool Racing Carnival on May 3, 2017.

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Warrnambool, Australia: Horses and riders walk on Lady Bay beach ahead of the Warrnambool Racing Carnival on May 3, 2017.

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<strong>Moscow: </strong>Russian jets fly over Red Square during a rehearsal for the Victory Day military parade which took place on May 9. The holiday marks the victory of the Soviet Union over Nazi Germany during World War II. <br />

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Moscow: Russian jets fly over Red Square during a rehearsal for the Victory Day military parade which took place on May 9. The holiday marks the victory of the Soviet Union over Nazi Germany during World War II.

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<strong>Tara, Japan: </strong>Traditional Japanese Torii gates stand on the shore and out into the Ariake Sea in Tara, Saga Prefecture.

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Tara, Japan: Traditional Japanese Torii gates stand on the shore and out into the Ariake Sea in Tara, Saga Prefecture.

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<strong>Seoul: </strong>A group of South Korean women wearing traditional hanbok dresses take selfies outside Gyeongbokgung palace in Seoul.

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Seoul: A group of South Korean women wearing traditional hanbok dresses take selfies outside Gyeongbokgung palace in Seoul.

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<strong>Madaba Governorate, Jordan: </strong>A flock of sheep are seen during sunset on a hillside in Madaba Governorate, Jordan.

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Madaba Governorate, Jordan: A flock of sheep are seen during sunset on a hillside in Madaba Governorate, Jordan.

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<strong>Corinth, Greece:</strong> Fireworks over the Temple of Appolo celebrate the arrival of Easter on the Greek Orthodox calendar.

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Corinth, Greece: Fireworks over the Temple of Appolo celebrate the arrival of Easter on the Greek Orthodox calendar.

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<strong>San Luis Obispo, United States:</strong> The Golden State has been even more golden this spring, as areas throughout California (like this valley on the eastern border of San Luis Obispo) are covered in a wildflower "superbloom."

Photos: See 90 great images from spots around the world in 2017

San Luis Obispo, United States: The Golden State has been even more golden this spring, as areas throughout California (like this valley on the eastern border of San Luis Obispo) are covered in a wildflower "superbloom."

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<strong>Dongyang City, China:</strong> Huayuan Village, in the Zhejiang Province in eastern China, has become a scenic area as well as a major source of redwood furniture.

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Dongyang City, China: Huayuan Village, in the Zhejiang Province in eastern China, has become a scenic area as well as a major source of redwood furniture.

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<strong>Budapest, Hungary:</strong> The blue lights on Budapest's Chain Bridge signal that the city has been chosen to host the FINA World Aquatics Championships 2017 this July.

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Budapest, Hungary: The blue lights on Budapest's Chain Bridge signal that the city has been chosen to host the FINA World Aquatics Championships 2017 this July.

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<strong>Casablanca, Morocco: </strong>A visitor arrives at Casablanca's Hassan II Mosque, also known as the Great Mosque, which overlooks the Atlantic Ocean.

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Casablanca, Morocco: A visitor arrives at Casablanca's Hassan II Mosque, also known as the Great Mosque, which overlooks the Atlantic Ocean.

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<strong>Shenyang, China:</strong> A 200-meter-long "arcade of lavender" is one of the most popular spots to visit in Liaoning Province's capital.

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Shenyang, China: A 200-meter-long "arcade of lavender" is one of the most popular spots to visit in Liaoning Province's capital.

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<strong>Cappadocia, Turkey:</strong> Hot-air ballooning is a popular tourist activity in Cappadocia, a UNESCO World Heritage Site in Central Anatolia. The area is characterized by a distinctive volcanic landscape and large network of ancient underground dwellings.

Photos: See 90 great images from spots around the world in 2017

Cappadocia, Turkey: Hot-air ballooning is a popular tourist activity in Cappadocia, a UNESCO World Heritage Site in Central Anatolia. The area is characterized by a distinctive volcanic landscape and large network of ancient underground dwellings.

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<strong>Wuhan, China: </strong>People view springtime cherry blossoms at Wuhan University in central China's Hubei Province.

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Wuhan, China: People view springtime cherry blossoms at Wuhan University in central China's Hubei Province.

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<strong>Hameem desert, United Arab Emirates: </strong>A man guides his camels across the Hameem desert, around 170 kilometers (about 106 miles) west of Abu Dhabi.

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Hameem desert, United Arab Emirates: A man guides his camels across the Hameem desert, around 170 kilometers (about 106 miles) west of Abu Dhabi.

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<strong>Unstad, Norway:</strong> <a href="/2013/11/20/travel/best-northern-lights/index.html" target="_blank">Unstad</a> -- north of the Arctic Circle -- is home to the world's most northerly surf school, Unstad Arctic Surf. Tom Carroll, an Australian former world champion surfer, rides a wave.

Photos: See 90 great images from spots around the world in 2017

Unstad, Norway: Unstad -- north of the Arctic Circle -- is home to the world's most northerly surf school, Unstad Arctic Surf. Tom Carroll, an Australian former world champion surfer, rides a wave.

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<strong>Porto, Portugal: </strong>A view over Porto from a lookout point in Vitoria. "Miradouros" is the Portuguese word for lookout spots offering impressive views.

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Porto, Portugal: A view over Porto from a lookout point in Vitoria. "Miradouros" is the Portuguese word for lookout spots offering impressive views.

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<strong>Saint Petersburg, Russia: </strong>An aerial view of the Saint Peter and Paul Fortress, built in the 18th century on Zayachy Island, also known as Hare Island.

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Saint Petersburg, Russia: An aerial view of the Saint Peter and Paul Fortress, built in the 18th century on Zayachy Island, also known as Hare Island.

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<strong>Beijing: </strong>Beijing's Forbidden City was China's imperial palace for around 500 years, from 1420 until 1912. It now houses the Palace Museum.

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Beijing: Beijing's Forbidden City was China's imperial palace for around 500 years, from 1420 until 1912. It now houses the Palace Museum.

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<strong>Petra, Jordan:</strong> The 43-meter-high facade of Al-Khazneh, also known as the Treasury, is one of the first sights to greet visitors to the ancient Jordanian city of Petra, built more than 2,000 years ago by the Nabataeans. <br />

Photos: See 90 great images from spots around the world in 2017

Petra, Jordan: The 43-meter-high facade of Al-Khazneh, also known as the Treasury, is one of the first sights to greet visitors to the ancient Jordanian city of Petra, built more than 2,000 years ago by the Nabataeans.

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<strong>Rio de Janeiro, Brazil:</strong> Annual Carnival celebrations got underway in Rio de Janeiro in February, with hundreds turning out for the Ceu na Terra (Heaven on Earth) street party on February 18. <br />

Photos: See 90 great images from spots around the world in 2017

Rio de Janeiro, Brazil: Annual Carnival celebrations got underway in Rio de Janeiro in February, with hundreds turning out for the Ceu na Terra (Heaven on Earth) street party on February 18.

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<strong>Siem Reap, Cambodia:</strong> UNESCO World Heritage site Angkor Wat is the largest religious structure in the world. The 41-acre temple complex was built to the Hindu god Vishnu by the Khmer King Suryavarman II in the early 12th century.

Photos: See 90 great images from spots around the world in 2017

Siem Reap, Cambodia: UNESCO World Heritage site Angkor Wat is the largest religious structure in the world. The 41-acre temple complex was built to the Hindu god Vishnu by the Khmer King Suryavarman II in the early 12th century.

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<strong>Washington: </strong>A tourist visits the Jefferson Memorial, dedicated to American Founding Father Thomas Jefferson, on US President's Day on February 20. <br />

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Washington: A tourist visits the Jefferson Memorial, dedicated to American Founding Father Thomas Jefferson, on US President's Day on February 20.

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<strong>Havana:</strong> Cuban children limber up during a baseball training session in Havana in February. Baseball is one of the country's most popular sports. <br />

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Havana: Cuban children limber up during a baseball training session in Havana in February. Baseball is one of the country's most popular sports.

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<strong>Moscow:</strong> Moscow's Red Square is pictured during a February snowfall. St Basil's Cathedral appears background left, and the Kremlin's Spasskaya tower is on the right.

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Moscow: Moscow's Red Square is pictured during a February snowfall. St Basil's Cathedral appears background left, and the Kremlin's Spasskaya tower is on the right.

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<strong>Catania, Italy:</strong> Crowds gather in Catania on February 5 for a religious festival celebrating Saint Agatha, a Christian martyr and the city's patron saint. <br />

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Catania, Italy: Crowds gather in Catania on February 5 for a religious festival celebrating Saint Agatha, a Christian martyr and the city's patron saint.

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<strong>Sigiriya, Sri Lanka: </strong>Located<strong> </strong>160 kilometers north of Colombo, the ancient rock fortress of Sigirya was built in the fifth century by King Kassapa I. <br /><br />

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Sigiriya, Sri Lanka: Located 160 kilometers north of Colombo, the ancient rock fortress of Sigirya was built in the fifth century by King Kassapa I.

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<strong>Tokyo:</strong> A bride and groom pose in traditional dress by a rapeseed oil field in Hamarikyu Garden in February. The flowers are expected to remain in bloom until the end of March.

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Tokyo: A bride and groom pose in traditional dress by a rapeseed oil field in Hamarikyu Garden in February. The flowers are expected to remain in bloom until the end of March.

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<strong>London: </strong>Chiswick House's Magic Lantern Festival is an annual part of London's Lunar New Year celebrations. The 2017 event takes a Silk Road theme and features more than 50 illuminations, an ice rink, street food stalls and a pop-up ice bar. The festival finishes February 26.

Photos: See 90 great images from spots around the world in 2017

London: Chiswick House's Magic Lantern Festival is an annual part of London's Lunar New Year celebrations. The 2017 event takes a Silk Road theme and features more than 50 illuminations, an ice rink, street food stalls and a pop-up ice bar. The festival finishes February 26.

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<strong>Potsdam, Germany:</strong> Sanssouci was the summer palace of Frederick the Great, who was King of Prussia from 1740 until 1786. It was built in the Rococo style and is regarded as Germany's answer to France's Palace of Versailles.

Photos: See 90 great images from spots around the world in 2017

Potsdam, Germany: Sanssouci was the summer palace of Frederick the Great, who was King of Prussia from 1740 until 1786. It was built in the Rococo style and is regarded as Germany's answer to France's Palace of Versailles.

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<strong>Gaza City:</strong> Palestinians enjoy the sunset on one of the city's beaches. Gaza City is home to about half a million people.

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Gaza City: Palestinians enjoy the sunset on one of the city's beaches. Gaza City is home to about half a million people.

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<strong>Valle del Cauca, Colombia: </strong>Agricola Himalaya owns the only tea crops in Colombia and exports to markets in the US and Latin America. Here, a worker picks tea leaves at the Bitaco farm.

Photos: See 90 great images from spots around the world in 2017

Valle del Cauca, Colombia: Agricola Himalaya owns the only tea crops in Colombia and exports to markets in the US and Latin America. Here, a worker picks tea leaves at the Bitaco farm.

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<strong>Dallol, Ethiopia:</strong> A sulfur lake is pictured in Ethiopia's Danakil Depression. At 100 meters below sea level, it's one of the hottest places on Earth. Temperatures here have been known to reach 125 F (51.6 C).

Photos: See 90 great images from spots around the world in 2017

Dallol, Ethiopia: A sulfur lake is pictured in Ethiopia's Danakil Depression. At 100 meters below sea level, it's one of the hottest places on Earth. Temperatures here have been known to reach 125 F (51.6 C).

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<strong>Kathmandu, Nepal:</strong> A child wheels his bike through UNESCO World Heritage site Bhaktapur Durbar Square, a former royal plaza filled with temples, statues and other landmarks.

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Kathmandu, Nepal: A child wheels his bike through UNESCO World Heritage site Bhaktapur Durbar Square, a former royal plaza filled with temples, statues and other landmarks.

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<strong>London: </strong>A real peasouper: The south of England was wrapped in freezing fog mid-January, with London's Houses of Parliament and the Elizabeth Tower -- better known as Big Ben -- pictured here in the gloam. <br />

Photos: See 90 great images from spots around the world in 2017

London: A real peasouper: The south of England was wrapped in freezing fog mid-January, with London's Houses of Parliament and the Elizabeth Tower -- better known as Big Ben -- pictured here in the gloam.

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<strong>Budapest, Hungary: </strong>Cold weather also gripped Budapest mid-January, where sightseers gathered under the stone pillars of Margaret Bridge to take photos of ice floes floating down the River Danube.

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Budapest, Hungary: Cold weather also gripped Budapest mid-January, where sightseers gathered under the stone pillars of Margaret Bridge to take photos of ice floes floating down the River Danube.

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<strong>Srinagar, Kashmir: </strong>Traditional wooden shikara boats are moored in the popular Dal Lake tourist spot. The Zabarwan mountain range lies beyond.

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Srinagar, Kashmir: Traditional wooden shikara boats are moored in the popular Dal Lake tourist spot. The Zabarwan mountain range lies beyond.

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Story highlights

It's common to feel blue after holidays and time off
Tips for coping: Don't dwell on work, think positive thoughts and know most people feel they are in the same sinking boat

(CNN)Dreaming at your desk about your recent trip? Remembering your child's face during those sweet family moments? Not remembering you have a meeting in 10 minutes? You are not alone.

Who is feeling like this today? #BacktoWork https://t.co/WR9aGKiULX pic.twitter.com/nXuBeWjhPZ
— gigsandtours (@gigsandtours) January 4, 2016

Doctors don't officially have a name for this. There's nothing specific in the official manual of mental disorders. But the Twitterverse calls the #backtoworkblues or a "post vacation hangover."

Hope everyone had a great holiday! If you're returning to work today, hang in there. #backtowork pic.twitter.com/QHCgbhEcfQ
— DI (@IDODI) January 4, 2016

Feel familiar? This crankiness about the first day back to work is perfectly normal according to Dr. Angelos Halaris. Just think of the winter holiday season.

FML: This is how I feel now that I'm #backtowork... https://t.co/yUkYrQDkD8
— BenchWarmers (@BeWarmers) January 4, 2016

"There is probably more than one good reason for this," said the professor of psychiatry and behavioral neurosciences at Loyola University in Illinois.

"It's more than likely during the 10 to 14 days of the holiday season with Christmas and New Year's we tend to go overboard even in the best sense -- overeating, overdrinking and not sleeping enough -- that all sets the stage for the post-holiday crash."

when you're trying to get back into the swing of things after a long break. #MondayMotivation 😑💤😂😂😂 pic.twitter.com/wYasUkMmVE
— Larry Kim (@larrykim) January 4, 2016

This extra stress on your body, combined with the stark contrast of the joy and freedom of family and friend time with the drudgery of answering a zillion work emails, can be hard on your emotional well-being.

Not used to the usual stress you took in stride before the holidays, you may react extra badly this week and next.

Shutting off your alarm clock Monday morning after holiday break. #backtowork pic.twitter.com/xT5dXm4038
— Wikia (@Wikia) January 4, 2016

"For many, the holiday season is like a dream world and hopefully people have had a good dream, but it is like a dream that ceases literally overnight," Halaris said. "There is a real sense of loss that comes with this transition period that makes us all a little sad."

Even if your time off didn't meet expectations, you still may not be happy about getting back to work and away from your crazy family. It may be even tougher after Christmas.

How it feels to go back to work after the holidays... #TheMuppets pic.twitter.com/3r94NiFoe5
— The Muppets (@TheMuppets) January 4, 2016

"We see this in study after study. People tend to have high hopes coming into Christmas thinking time with their family will be like the Waltons or thinking Santa will bring us all that we want, but it never totally works out that way even if it was a really good holiday," Dr. Randy Hillard said.

Hillard is a professor of psychiatry at Michigan State University. "That can leave you feeling let down, too. We see this every year with a lot more calls to the crisis line, a higher number of deaths and there are even studies that show the letters to Dear Abby sound much more depressed after the holiday."

Happy first Monday of 2016 pic.twitter.com/jF2IVrC8AI
— Darth Vader (@DepressedDarth) January 4, 2016

Winter adds to this perfect storm of gloom. It still gets dark early. Much of the world is cold. It's wet. Seasonal Affective Disorder can be particularly acute if you enjoyed a sunny beach vacation.

The look on your face when you have to go #backtowork pic.twitter.com/53sXwhIM8a
— Jon Snow (@LordSnow) January 4, 2016

So what can you do to bring back that holiday feeling even if you're at the office?

"Treat all colleagues like they are insane for the next couple of weeks, it works with family members, too," Hillard said. Know that most people feel like they are in the same sinking boat.

Pretending to work this morning... #backtowork 😴 pic.twitter.com/091HCVCVJC
— MinistryofSoundClub (@ministry_club) January 4, 2016

Ease back into work. "Don't jump into the cold water, you'll have a heart attack. Ease your way back into your routine," Halaris said. Set small goals to feel a sense of accomplishment.

"If you ease into this with full awareness, rather than trying to plan a ton and hope to get it all done in the next 24 hours, it helps."

#BackToWork like... pic.twitter.com/WsYGdpfLcr
— VH1 (@VH1) January 4, 2016

Don't dwell. Know that something you enjoyed has come to an end, but make peace with it and know it will come back again. Resist feeling sorry for yourself.

"Self talk and being optimistic is important," Halaris said. Look at kitten pictures online if you need a little lift.

Waking up #Monday morning like ... #backtowork https://t.co/b8hCtcLAUO
— peta2 (@peta2) January 4, 2016

Take advantage of the break in your routine and start new office habits. Even if it is something small like being friendlier to random co-workers or getting up to walk away from your desk once an hour, it helps.

dealing with everything coming at me rn #backtowork pic.twitter.com/LXkK6Lzbb4
— Adam Khan (@Khanoisseur) January 4, 2016

Think about what you liked about your break and bring an element of it to your work. Pajamas may not be in the dress for success plan, but if you enjoyed connecting with friends you don't normally see, squeeze them into your weekly schedule, even if it's for a 15-minute coffee.

Rise and whine. #MondayMotivation pic.twitter.com/vQly0xZt4h
— Disney•Pixar (@DisneyPixar) January 4, 2016

And do connect. People who are blue tend toward withdrawal.

Join the conversation

See the latest news and share your comments with CNN Health on Facebook and Twitter.

"Push yourself to interact even if you don't feel like it," Hillard said. Company helps avoid misery. "Prescribe yourself an evening out with relatives or friends in the upcoming weeks," Halaris said.

"Without, of course, being drunk or overeating or staying up too late to start the cycle over again. It can help you be mindful that while the holidays are over, yes, but you can have fun again soon."