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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.
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.