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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 average office desk has 400 times more bacteria on it than a toilet.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
If you could remove all of your skin, it would weigh up to 5 pounds.
Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.