There are 20 feet of blood vessels in each square inch of human skin.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.
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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
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Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.
The seven phenotypic pairs studied by Mendel
The Helium Atom.
homologous pairs
Electrons
The 31 pairs of spinal nerves.
The frequency of bipolar illness in members of monozygotic twin pairs and in first-degree relatives