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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.
More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.