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Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.