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Screen time before bed messes with body's clock

9:30 AM 0

If you're in bed reading this, you may feel sleepy tomorrow morning.

A study has found reading from a light-emitting device, such as an e-reader, before bedtime can shift your body's natural clock and delay the onset and characteristics of your ......

Sheri Jacobs and her daughter, Jillian, 10, use an iPad as they relax on the couch at their home in Deerfield, Ill. Show/Hide caption

Sheri Jacobs and her daughter, Jillian, 10, use an iPad as they relax on the couch at their home in Deerfield, Ill. - Chris Sweda / MCT files

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