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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
In 1864, the first barbiturate (barbituric acid) was synthesized.
Asthma cases in Americans are about 75% higher today than they were in 1980.
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.