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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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Your heart beats over 36 million times a year.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
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Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.