A scientific look at the problem of lack of sleep in adolescence and simple practices that will help a parent establish a healthy sleep for their child. One of the main (but often invisible) threats to the physical and mental health of young children is lack of sleep. Children experience severe overload, associated primarily with a busy curriculum and the need to meet the high expectations of relatives and teachers. Teenagers get up early and lie down late. They are overloaded with homework and constantly hang out on the Internet, taking away the opportunity to relax from themselves.