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Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

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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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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Vasectomy. (a) Vas deferens is located within the spermatic cord on both sides. (b) A small incision Vasectomy. (a) Vas deferens is located within the spermatic cord on both sides. (b) A small incision
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Gravitational Redshift The color of light from the same object located at diffe Gravitational Redshift The color of light from the same object located at diffe
This Powertrain Control Module (PCM) is located under the hood on this Chevrolet pickup truck. This Powertrain Control Module (PCM) is located under the hood on this Chevrolet pickup truck.
Middle eastern kobab Middle eastern kobab
Video: Reflex arc construction

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