Why is it that many teenagers have the energy to play computer games until late at night but can't find the energy to get out of bed  (1) _____ time for school?

According to medical experts, one in five youngsters (5) ______ by on between two and five hours/ sleep a night, less than their parents did at their age.

Adults can easily survive on seven to eight hours' sleep a night, (4)_____ teenagers require nine or ten hours.

 …they are putting their mental and physical health at (3) ________.

According to a new report, today’s generation of children are in danger of getting so (2) _____  sleep….

Why is it that many teenagers have the energy to play computer games until late at night but can't find the energy to get out of bed  (1) _____ time for school?

You have to get enough sleep to (10) ______ stress and to stay healthy and full of energy.