Humans, like all animals, need sleep, along with food, water and oxygen, to
survive. For humans sleep is a vital indicator of overall health and well-being.
How many hours of sleep do you need? What happens when you don't get
enough? Explore sleep's cycles and stages and how to recover from sleep debt.
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 ...
Feb 22, 2016 ... Skipping hours of sleep can take a big toll on your health. Find out how much
sleep you need at different stages of development to stay healthy ...
Mar 13, 2016 ... It's time to put those old sleep rumors to bed: Not everyone needs eight hours of
shut-eye to reach peak performance. Do you?
Feb 2, 2015 ... It seems like a question that's as old as time itself: "How much sleep do I really
need?" The nonprofit National Sleep Foundation and a panel of ...
Apr 6, 2016 ... The amount of sleep you need depends on various factors ... complex mental
tasks as do people who get closer to seven hours of sleep a night.
Feb 3, 2015 ... New guidelines from the National Sleep Foundation slightly change the
recommended sleep ranges ... [How Much Sleep Do You Really Need?
Feb 15, 2015 ... So now we know how much sleep we need. The National Sleep Foundation in
the US has had 18 experts sifting through 320 research articles ...
sleep-do-you-need-400x400.jpg ... awake for hours with insomnia is just one
example of many conditions that affect how you sleep and function during the day