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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.
There are more sensory neurons in the tongue than in any other part of the body.
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.