I have something to confess: I regularly sleep less than seven hours a night. Despite knowing that this duration is below the oft-recommended sleep guidelines for adults, I always try to justify my ...

How does your brain know when it's time to sleep? There are two main factors: Hours Awake. The longer you've been awake, the stronger your drive for sleep. Circadian Rhythm. Your body operates on a ...

We all wish we could get by on less sleep, but one father and son actually can—without suffering any health consequences and while actually performing on memory tests as well as, or better than, most ...