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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.