a team of researchers from the Faculty of Medicine at Harvard University compared the effects of reading classic books and electronic reading before bed. Their results showed that users of electronic devices have more difficulty sleeping because of the taillights.
Scientists warn that if reading fantasy before going to bed, but their choice is still the online edition instead of the classic book, then you should know that you will sleep worse, and could cause additional damage to your health.
According to the BBC, a team of researchers from the Faculty of Medicine at Harvard University compared the effects of reading the classic book and the electronic version just before sleep and found that those using devices electronics have difficulty going to sleep, restless sleep and wake up tired in the morning.
Indeed, the blue light emitted by smartphones, tablets and LED lights can disrupt our internal biological clock. Blue light at night can delay or even prevent the production of melatonin, a hormone that is responsible for sleep.
Experts from Harvard University conducted an experiment 12 participants volunteers. Reading a classic book for five days before bedtime and then electronic publications on the iPad for five days. Blood samples of the participants in this study showed reduced melatonin production, which coincides with the circadian rhythm disorder or biological clock, even for half an hour.
The researchers, whose findings were published in the Proceedings of the National Academy of Sciences (PNAS), concluded that those individuals who have decided to read on the iPad or other smart device, also needs more sleep time (10 minutes on average), and also have less REM sleep and wake up more tired than usual.
– The light emitted by most e-readers radiates straight in the eye, and in the case of a classic book, the reader is only exposed to the light that emerges from the pages of the book. It has been shown that lack of sleep increases the risk of cardiovascular disease, obesity and diabetes, cancer, and, -warns study leader, Professor Charles Zisler, adding that the medical community is also significantly more concerned about results of this research.
Zisler advises people to use less intelligent devices before bedtime. This applies especially to teenagers who are prone to the use of mobile phones and tablets until late at night.
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