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Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

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Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Triangle plot showing gene expression related to xylem, phloem, and nonvascular tissue in Arabidopsi Triangle plot showing gene expression related to xylem, phloem, and nonvascular tissue in Arabidopsi
he vertebrate stomach as an example of an organ composed of all four tissue types he vertebrate stomach as an example of an organ composed of all four tissue types
Multiple sclerosis (MS). (a) A disease characterized by the gradual development of small areas of ha Multiple sclerosis (MS). (a) A disease characterized by the gradual development of small areas of ha
Pasteur separated crystals Pasteur separated crystals
A long, narrow cobbled street in Old San Juan. A long, narrow cobbled street in Old San Juan.
Tissue Tissue
Video: Neuron structure and function - sensory neurons, association neurons & motor neurons

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