How long do you sleep? Is it really enough? What do you do before going to bed? Which are the effects of sleep deprivatioin on our physical and mental health? How can you improve the quality of our rest?
1 TED Education Lesson - What would happen if we didn't sleep (short).m4v
Ted-Ed video abstract about sleeping deprivation
5 STATISTICS ABOUT SLEEP TIME.pdf
Some facts and figures about sleeping time among youngsters