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Author Question: The wear-and-tear theory of aging proposes that we have a certain number of usable cells that are ... (Read 50 times) |
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.
Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.