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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.
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.
The average office desk has 400 times more bacteria on it than a toilet.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.