|
|
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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.
Excessive alcohol use costs the country approximately $235 billion every year.
The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.