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There are more sensory neurons in the tongue than in any other part of the body.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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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.