|
|
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.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
People about to have surgery must tell their health care providers about all supplements they take.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
There are more sensory neurons in the tongue than in any other part of the body.