Why sleep matters
Adequate sleep is essential for good health and for being able to work safely and enjoy life to the fullest.
Lack of sleep, on the other hand, has been linked to a number of chronic diseases and health problems, including cardiovascular disease, heart attack, stroke, high blood pressure, obesity, diabetes and depression. Sleep problems can make people so tired during the day that they find it hard to perform normal job and social activities, robbing them of the joy of life, says the University of Maryland Medical Center.
Not only does lack of sleep cause health problems, but experts at Harvard Medical School say it also may be a sign of an underlying condition such as heartburn, diabetes, cardiovascular disease, kidney disease, neurological disorders, mental illness, thyroid disease, respiratory problems and musculoskeletal disorders.
How Much Sleep?
The amount of sleep required for that good night's sleep varies from person to person. And it changes as we age. For example, adolescents need at least 8.5 to 9.5 hours a night, but adults typically need 7 to 9 hours, says the National Sleep Foundation.
If you believe you're getting adequate sleep but still feel tired during the day, you should consult with your doctor to find out if you have a sleep disorder, the U.S. National Heart, Lung, and Blood Institute advises. If that is suspected, a sleep study at a sleep disorders center, might be suggested.
Signs of a possible problem related to sleepiness include:
- A consistent lack of sleep or getting poor quality sleep.
- Struggling to stay awake when you're inactive, such as reading or watching television.
- Difficulty paying attention at work, school or home.
- Often being told by others that you seem sleepy.
- Poor memory.
- Slowed responses.
- Difficulty controlling your emotions.
- Having to take naps on most days.