Scientists have just discovered a new, very important reason for you to get a good night's sleep. For the first time, they've actually been able to see the brain physically cleaning itself while you're catching Zzz's! Anthony explains how this cerebral garbage disposal system works.
To sleep, perchance to clean
"In findings that give fresh meaning to the old adage that a good night's sleep clears the mind, a new study shows that a recently discovered system that flushes waste from the brain is primarily active during sleep."
How Sleep Works
Missing Sleep: One way to understand why we sleep is to look at what happens when we don't get enough.
Coping With Excessive Sleepiness
"You know lack of sleep can make you grumpy and foggy. You may not know what it can do to your sex life, memory, health, looks, and even ability to lose weight. Here are 10 surprising -- and serious -- effects of sleep loss."