2. Do you know what
“internal clock”
means??
It is a system in the body that controls
the occurrence of natural processes
(such as waking, sleeping, and aging)
3. During puberty the teenager’s
internal clock changes and they
have sleeping problems.
4. Most of the teens need 9 hours of sleep but
few manage to get that much.
5. There are some reasons for that
like:early morning classes, homework, use
of computers, extra curricularactivities
and social demands.
6. And the sleep deprivation can have many serious
consequences like narcolepsy, eating disorders, behavioral
problems, skin problems, depression...
7. Having some information about the topic, you can watch the video below if you
wish.
● Why High Schools Should Start Later
Prepared by Yasemin GÖK
