why it matters

How much do we need?

Humans need less sleep as they age


adolescents: 8-10


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.

watch this story about sleep deprivation