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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.