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A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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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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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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There are 20 feet of blood vessels in each square inch of human skin.