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Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

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There are more sensory neurons in the tongue than in any other part of the body.

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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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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.

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When Union troops pushed toward Richmond in June of 1862, these slaves crossed the Rappahannock Rive When Union troops pushed toward Richmond in June of 1862, these slaves crossed the Rappahannock Rive
The action potential. The action potential.
Video: Glucose Evaluation Procedure

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