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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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The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.
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Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.
Rates of water loss by two turtles and a tortoise indicate an inverse relationship between the dryne
The sense of hearing.
Mazie Hirono, the first Japanese American woman to be elected a U.S. senator.
Sign on methanol pump shows that methyl alcohol is a poison and can cause skin irritation and other ...
Structural MRIs reveal cortical loss in adolescent patients with schizophrenia. Here dark blue ...
Types of ecosystem service vs. total global value per year