Sleep is your life-support system and Mother Nature's best effort yet at immortality, says sleep scientist Matt Walker. In this deep dive into the science of slumber, Walker shares the wonderfully good things that happen when you get sleep -- and the alarmingly bad things that happen when you don't, for both your brain and body. Learn more about sleep's impact on your learning, memory, immune system and even your genetic code -- as well as some helpful tips for getting some shut-eye.

Matt Walker: Sleep is your superpower

Sleep is your superpower

A single night's sleep deprivation can significantly impair memory and learning, akin to aging a decade in cognitive function.

Daylight saving time reveals sleep's profound impact on heart health, with a 24% spike in heart attacks after losing an hour of sleep.

Restricting sleep to six hours for one week can distort over 700 genes, increasing risks of cancer, inflammation, and heart disease.