Blue light like that from smartphones linked to some cancers, study finds

By Mark Lieber, CNN

Updated 2041 GMT (0441 HKT) April 27, 2018

The Sixth Street bridge over the Los Angeles River looks a bit different with old, left, and new streetlights.
Photos: Los Angeles LED streetlights
The Sixth Street bridge over the Los Angeles River looks a bit different with old, left, and new streetlights.
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Hoover Street
Photos: Los Angeles LED streetlights
Hoover Street
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Ocean Front Walk in Venice
Photos: Los Angeles LED streetlights
Ocean Front Walk in Venice
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Bixel and Colton streets
Photos: Los Angeles LED streetlights
Bixel and Colton streets
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La Mirada Avenue
Photos: Los Angeles LED streetlights
La Mirada Avenue
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Story highlights

  • People exposed to higher levels of blue light were at more risk of breast and prostate cancer
  • Those exposed to LEDs wi