Learn how MIT researchers uncovered how our brains try to clean themselves mid-day, costing us attention in the process.

A peaceful sleep is like a reset button for one's body and mind. But what happens if it skips? Deprivation of sleep for a night is the beginning of a chain reaction that is going to affect almost ...

After a night of poor sleep, you don't feel as alert as you should. Your brain might seem foggy, and your mind drifts off when you should be paying attention.