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WOMEN'S HEALTH

How Many Hours of Sleep are Enough?

BY PFIZER-ADMIN | 05.30.2014

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Q. How many hours of sleep are enough for good health?

A. The amount of sleep you need depends on various factors — especially your age. Consider these general guidelines for different age groups:

In addition to age, other factors may affect how many hours of sleep you need. For example:

  • Pregnancy. Changes in a woman's body during pregnancy can increase the need for sleep.
  • Aging. Older adults need about the same amount of sleep as younger adults. As you get older, however, your sleeping patterns may change. Older adults tend to sleep more lightly and awaken more frequently during the night than do younger adults. This may create a need for or tendency toward daytime napping.
  • Previous sleep deprivation. If you're sleep deprived, the amount of sleep you need increases.
  • Sleep quality. If your sleep is frequently interrupted or cut short, you're not getting quality sleep — and the quality of your sleep is just as important as the quantity.
  • Although some people claim to feel rested on just a few hours of sleep a night, 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. Additionally, studies among adults show that getting much more or less than seven hours of sleep a night is associated with a higher mortality rate.

    If you experience frequent daytime sleepiness, even after increasing the amount of quality sleep you get, consult your doctor. He or she may be able to identify any underlying causes — and help you get a better night's sleep.

    ©1998-2013 Mayo Foundation for Medical Education and Research (MFMER). All rights reserved. Terms of Use

    Image Credits: Syda Productions/Shutterstock.com

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your BEST.

Get the nutrients you need
from A- Z while you enjoy
your favourite meals.

Which multivitamin is right for me?