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Allergies [25]
Allergy is a disorder of the immune system often also referred to as atopy.

Antidepressants [24]
An antidepressant is a psychiatric medication used to alleviate mood disorders, such as major depression and dysthymia.

Arthritis [23]
Arthritis is a group of conditions involving damage to the joints of the body.

Cancer [28]
Cancer is a class of diseases in which a group of cells display uncontrolled growth

Cardio & Blood [1]
Risk factors for heart disease: infections

Cholesterol [3]
A fat-like substance called a lipid. It is used to build cell membranes, hormones and bile acids

Diabetes [20]
The inability of the body to produce, or the inability to metabolize, the human hormone insulin; Diabetes insipidus, usually a disorder of the ...

Epilepsy [9]
Epilepsy is a common chronic neurological disorder characterized by recurrent unprovoked seizures

Gastrointestinal [4]
The digestive tract is the system of organs within multicellular animals that takes in food...

General Health [54]
The infant, child or young person?s current health condition

Herbal [30]
Herbal tea, herbal medicine

Hormonal [26]
Hormones - Proteins produced by organs of the body that trigger activity in other locations.

Men's Health [2]
For men on fitness, health, sex, caree

Pain relief [23]
Pain management is the medical discipline concerned with the relief of pain.

Skin care [23]
The skin is the outer covering of the body

Weight Loss [29]
Loss of body weight by dieting or due to various easting disorders or medical conditions.

Women's Health [31]
Find information on women's health issues, and lifestyle at the Women's Health



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Awaiting moderation 16 Article

How much to sleep?

        HOW MUCH TO SLEEP?
How much sleep is really enough? The sleep deprivation studies suggest a minimum of perhaps two hours a day. Psychological studies show that it depends on whether we are larks or owls, or a bit of both. Statistically, it is reported that most healthy adults sleep 15 hours a day.
It is now known that how much we sleep each night may be determined by our genes. Studies of identical twins, who share the same genes, reveal that their sleep is similar in quality and quantity even if they live in different environments for years. We can be trained to sleep a shorter number of hours each night, but it appears that we revert to our former number of hours of sleep when the training is over.
It has also been shown that longer sleepers who sleep more than ten hours each night may not be the healthiest group of people. The American Cancer Society carried out a six year survey which showed that the death rate of these long sleepers was nearly double that of those who sleep between seven and eight hours each night The reverse is also true for short sleepers who claim they sleep less than four hours each night; their death rate is two-and-a-half-times that of average sleepers. At present the exact relationship between sleep and health remains a mystery.

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Keywords for this page: How much to sleep?


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