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Did you know?
The human body produces and destroys 15 million blood cells every second.
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The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.
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The average office desk has 400 times more bacteria on it than a toilet.
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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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Illicit drug use costs the United States approximately $181 billion every year.