Does the excess use of smart phones affect sleep? One study found that limited use of smartphone, tablets and computers in the evening could reduce sleep problems in adolescents. It can also be cured of fatigue, lack of concentration and bad mood. According to researchers, adolescents who spend more than 4 hours on smartphones those sleep 30 minutes later than average. In a recent study, it has been proved that excess use of blue light generating devices can affect brain's clock and sleep-related hormone melatonin secretion. The result is the time of sleeping get distured. Due to lack of sleep, there is not only fatigue but lack in concentration also. A researcher of the Amsterdam UMC hospital in the Netherlands said, Children age of adolescents are spending more time on the screen device. They should not do this. The smartphone is for knowledge and entertainment only, it should not be used all day. Teenagers should play more physi...
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