Teenagers are increasingly depriving themselves of sleep, and instead spending more time on their smart phones or other devices , say scientist.who found their teens sleep fewer hours per night than that of the older generations. most sleep experts agree that adolescents need nine hours of sleep each night to be engaged and productive students ; less than seven hours is considered to be insufficient sleep. researchers from San Diego state university and Iowa state university in the us examined data of more than 360,000 us school students who took part in a survey.
the study published in the journal sleep medicine found that about 40%of adolescents in 2015 slept less than 7 hours a night which is 58 %more than in 1991 and 17% more than in 2009. delving further into the data, researchers learned that the more time young people reported spending online , the less they got.teens who spent hours a day online were 50% more likely to not to sleep enough than their peers who spent only 1 hour online each day . not only while sleeping but researchers say that the light waves by smart phones and tablets can interfere the body`s natural sleep wake rhythm.students might compensate for that lack of sleep by dozing off during daytime hours.
our body is going to try to meet its sleeps needs , which means sleep is going to interfere or shove its nose in other spheres of lives.
sleep is important for our body`s both mental and physical piece......
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