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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
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The human body produces and destroys 15 million blood cells every second.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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If you could remove all of your skin, it would weigh up to 5 pounds.
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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.