Screen time affects teens’ sleep

February 3, 2015 5:34 PM

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Parents have long suspected it, but now doctors have proof: the more time teenagers spend on computers or mobile phones, the less they sleep - especially if the gadget is used just before bedtime.

The evidence is so strong, the experts said, that health watchdogs should overhaul guidelines for electronic device use by youngsters. The team carried out an investigation among nearly 10,000 people aged 16 to 19 in Hordaland county, western Norway, in 2012, they reported in the journal BMJ Open on...

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