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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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.
Increasing Costs of Natural Disasters
Press with fingertips into Bl-10 and GB-20 at the base of the skull; press individually and then ...
Building a Client Base
Natural Resource Prices, 1850–2010
Acid–Base Balance
An artist’s depiction illustrating the orientation of the base