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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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.