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Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

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When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

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The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Body temperature and environmental temperature in homeotherms versus heterotherms. Body temperature and environmental temperature in homeotherms versus heterotherms.
A maneless male lion, who also has little body hair - from Tsavo East National Park, Kenya A maneless male lion, who also has little body hair - from Tsavo East National Park, Kenya
Body Planes Body Planes
Temperature cycles for 24 hours Temperature cycles for 24 hours
Growth of the body and brain is dramatic over the first 2 years. Growth of the body and brain is dramatic over the first 2 years.
Measuring Temperature Using a Heat-Sensitive Wearable Thermometer Measuring Temperature Using a Heat-Sensitive Wearable Thermometer
Video: Segmentation and migrating motility complexes & Gastroileal reflex

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