Sleep

why it matters

How much do we need?

Humans need less sleep as they age


infants:13-14

adolescents: 8-10

adults;7.5-8.5

Why do we sleep?

Sleeping Disorders

Oversleeping: anxiety, weight gain, lack of energy. (hypersomnia)



Sleep Deprivation: reduced alertness, memory impairment, occupational hazard, increased chance of automobile injury, health risks such as high blood pressure and heart disease.

http://www.youtube.com/watch?v=XpM50ONSQok

watch this story about sleep deprivation