|
|
The familiar sounds of your heart are made by the heart's valves as they open and close.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).