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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Everyone has one nostril that is larger than the other.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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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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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.