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Did you know?
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.
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Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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The average adult has about 21 square feet of skin.