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Did you know?
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
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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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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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

