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There are more bacteria in your mouth than there are people in the world.
There are more nerve cells in one human brain than there are stars in the Milky Way.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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.
Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.