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You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.
The familiar sounds of your heart are made by the heart's valves as they open and close.
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.