 Statistics from research studies about sleep loss and its effects on teenagers and children include following:
- Teenagers with insomnia are more likely to have problems with self-control, and this in its turn can lead to risk-taking behaviours.
- Sleeplessness causes a great number of schooling problems, including disobedience and decreased concentration.
- High school students who regularly have C, D or F for school tests, sleep in a half an hour less than those who regularly get A and B grades.
- Sleep disorders in teenagers are associated with higher risk of disorders including depression and attention deficit hyperactivity disorder (ADHD).
- Later start times at school lead to reduced daytime sleepiness, higher grades and reduced negative feelings.
What amount of sleep is enough for teenagers and children?
Sleep needs for each certain person are different. They depend on age, general medical condition, physical activity levels and other individual factors. Generally:
 - Primary school children need about 9-10 hours of sleeping. Studies have proved that a half an hour of additional sleep to the general can essentially improve school performance.
- Teenagers need about 9-10 hours too. Teens have an increased sleep needs at the time when social obligations and peer pressure cause a decrease in sleep time.
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