London: Restricting exposure to night light blue emission screens on smartphones, tablets and computers can reverse sleep problems and reduce the symptoms of fatigue, lack of concentration and poor mood in teenagers, after a week alone, says a study. The researchers found that those who had more than four hours a day of screen time had 30 minutes later sleep and wake up times than those who recorded less than an hour a day of time t the screen, as well as more symptoms of sleep loss.
“Young people are increasingly spending more time on devices with screens and sleep complaints are often in this age group,” said study co-author, Dirk Jan Stenvers from the UMC Amsterdam hospital in the Netherlands. Recent studies have shown that exposure to too much blue light with a night emitted from devices can affect the brain clock and produce the sleep hormone melatonin, resulting in sleep time and disruptive quality.
Lack of sleep does not only cause symptoms of fatigue and poor concentration, but can also increase the risk of more serious long-term health problems such as obesity, diabetes and heart disease. “Here we show very simply that these sleep complaints can be easily reversed by reducing the use of a night screen or exposure to blue light. (IANS)
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