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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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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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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.