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

Long Islanders should take advantage of the extra hour of sleep when the clocks roll back for the end of daylight saving time ...

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.

New research shows that during moments of lost focus after poor sleep, the brain releases a wave of cerebrospinal fluid (CSF)—the same cleansing process that normally occurs during deep sleep.

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 ...