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Did you know?

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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Medication errors are more common among seriously ill patients than with those with minor conditions.

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Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Incidence of acute hepatitis B in the United States, 1980–2008. Incidence of acute hepatitis B in the United States, 1980–2008.
The three states of matter: solid, liquid, and gas. The three states of matter: solid, liquid, and gas.
Percentage of Americans Living in Communities with a Fluoridated Water Supply, by State. 2012 Percentage of Americans Living in Communities with a Fluoridated Water Supply, by State. 2012
The Location and Number of Farms in the United States, 2012 The Location and Number of Farms in the United States, 2012
Estimated New Cases of Selected Cancers in the USA, 2012 Estimated New Cases of Selected Cancers in the USA, 2012
Nutrias native to South America are abundant in freshwater marshes of the Gulf States. Their populat Nutrias native to South America are abundant in freshwater marshes of the Gulf States. Their populat
Video: Double Vacuum Process (Illustration No Audio)

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