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Did you know?
Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).
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There are approximately 3 million unintended pregnancies in the United States each year.
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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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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.