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Did you know?
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
Did you know?
When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
Did you know?
Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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There are more sensory neurons in the tongue than in any other part of the body.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.