Sleeping adults

How much sleep do we really need, and what happens if we get too little or too much? We spend about a third of our lives sleeping, so you've asked an important question. The National Sleep Foundation recommends seven to eight hours of sleep for people over age 64 and seven to nine hours for ages 18 to Kids need more sleep.
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How Much Sleep Do We Really Need?

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A Good Night's Sleep | National Institute on Aging

Sleeping difficulty is when you have trouble sleeping at night. It may be hard for you to fall asleep, or you may wake up several times throughout the night. Sleep difficulty may affect your physical and mental health. Lack of sleep may also cause you to have frequent headaches or trouble concentrating. Most people experience difficulty sleeping at some point in their lives. Some people may feel refreshed after only six or seven hours of sleep.
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Is 5 Hours Enough Sleep?

Back to Sleep and tiredness. If you have difficulty falling asleep, a regular bedtime routine will help you wind down and prepare for bed. Few people manage to stick to strict bedtime routines.
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The amount of sleep you need depends on various factors — especially your age. While sleep needs vary significantly among individuals, consider these general guidelines for different age groups:. Some people claim to feel rested on just a few hours of sleep a night, but their performance is likely affected. Research shows that people who sleep so little over many nights don't perform as well on complex mental tasks as do people who get closer to seven hours of sleep a night.
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