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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
The average adult has about 21 square feet of skin.
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.
Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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