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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?
Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
Did you know?
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
Did you know?
Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.
Did you know?
Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.