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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
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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There are more sensory neurons in the tongue than in any other part of the body.
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Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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