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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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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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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.
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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.