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Vaccines prevent between 2.5 and 4 million deaths every year.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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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.