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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.
Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
If you could remove all of your skin, it would weigh up to 5 pounds.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
There are more nerve cells in one human brain than there are stars in the Milky Way.
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