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Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

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The average office desk has 400 times more bacteria on it than a toilet.

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Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

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If all the neurons in the human body were lined up, they would stretch more than 600 miles.

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Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Desert shrubs create distinctive thermal microclimates in the desert landscape Desert shrubs create distinctive thermal microclimates in the desert landscape
Heat Index Heat Index
Example of Index entry with Main Term and indented subterms. Example of Index entry with Main Term and indented subterms.
Body mass index table. Body mass index table.
Calculation of body mass index. To determine your BMI, find the value for your height on the left ... Calculation of body mass index. To determine your BMI, find the value for your height on the left ...
The Wind Chill Index. The Wind Chill Index.
Video: Immune responses Animation

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