|
|
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.
Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
On average, the stomach produces 2 L of hydrochloric acid per day.
More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.