You say you are able to function well with fewer than seven hours of sleep. Some people say they can function on four to six hours of sleep each night, but research shows that adults who get fewer than seven hours of sleep — whether for just one night or over the course of days, weeks, or months — have more difficulty concentrating and more mood problems than people who sleep …

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“There’s also really compelling data supporting the fact that delaying college start times is a very important intervention that can mitigate some of the impact of sleep loss,” Owens tells TIME, suggesting if colleges make the switch now, there’s time to prevent some of those negative outcomes.

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Developed in 1994 by the Bradley Hospital/Brown University Sleep Research Lab, the college Sleep Habits Survey was administered to …

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 ability to lose weight. Here are 10 surprising — and serious — effects of sleep loss.

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Discover how much you know about sleep with our sleep polls & data, get the latest research and get answers from the experts at the National Sleep Foundation.

The results suggest that sleep deprivation in the tween and teen years may interfere with how the brain processes rewards. The brain’s lack of response is a sign of disinterest to rewards and incentives triggered by sleep deprivation.