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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.
The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.