More than 40% of Americans say they don’t get enough sleep, and the culprit could be watching TV in bed. A new study by the National Sleep Foundation found that 95% of people polled had used some sort of electronic device less than an hour before bed the previous night. Exposure to electrical light between dusk and bedtime strongly suppresses melatonin levels, and light -emitting TVs, smart phones, computers and video-game players can do just that, making it difficult to sleep.
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