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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.
Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.