Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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Thyroid conditions may make getting pregnant impossible.
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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.
The dynamic nature of the endomembrane system
Human Back Muscles
The Autonomic Nervous System
Shake the calf muscles. Pick up the calf muscles with one hand, and shake them back and forth.