sleep
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The power of sleep Many of us try to sleep as little as possible—or feel like we have should. There are so many things that seem more interesting or important than getting a few more hours of sleep, but just as exercise and nutrition are essential for optimal health and happiness, so is sleep. The quality of your sleep directly affects the quality of your waking life, including your mental sharpness, productivity, emotional balance, creativity, physical vitality, and even your weight.
How Much Sleep Do You Need? Sleep Cycles & Stages, Lack of Sleep & Getting the Hours You Need
Most teens need about 8½ to more than 9 hours of sleep each night. Getting the right amount of sleep is essential for anyone who wants to do well on a test or play sports without stumbling. Unfortunately, though, many teens don't get enough sleep. Why Don't Teens Get Enough Sleep? Until recently, teens often got a bad rap for staying up late, oversleeping for school, and falling asleep in class. But recent studies show that adolescent sleep patterns actually differ from those of adults or kids.