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Author Question: Genetics seems to be a factor regarding predispositions to sexual deviance. A reward deficiency ... (Read 21 times) |
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.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
There are more sensory neurons in the tongue than in any other part of the body.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.