Instagram worst social media app for young people's mental health
by Kara Fox, CNN
Updated 2128 GMT (0528 HKT) May 19, 2017
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Photos:How social media affects the teenage brain
Researchers at UCLA's Brain Mapping Center found that when teenagers' photos get lots of "likes" on social media apps, such as Instagram, their brains respond in a similar way to seeing loved ones or winning money.