There are 20 feet of blood vessels in each square inch of human skin.
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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
Life's Calendar
Major Cervical Muscles
Major Body Cavities
Food, friends, and football . . . a way of life
About 1 in 25 Americans of European descent, 1 in 46 Hispanics, 1 in 60 to 65 African Americans, and