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

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Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

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In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

The otoscope is positioned in the ear prior to examination of the auditory canal. The otoscope is positioned in the ear prior to examination of the auditory canal.
Prisoners from the front (1866) established Winslow Homer's reputation for spare truthfulness. Prisoners from the front (1866) established Winslow Homer's reputation for spare truthfulness.
In 1979 Islamic militants held American embassy workers hostage in Tehran. In 1979 Islamic militants held American embassy workers hostage in Tehran.
The Race-Ethnicity of the 3,170 Prisoners On Death Row The Race-Ethnicity of the 3,170 Prisoners On Death Row
Apply lubricant to the foot and ankle, plantar and dorsal surfaces, and to each toe separately. Apply lubricant to the foot and ankle, plantar and dorsal surfaces, and to each toe separately.
Correlates well with global temperature prior to the impact of GHG emissions Correlates well with global temperature prior to the impact of GHG emissions
Video: Cytotoxic T cell receptors, activation, proliferation, differentiation & action

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