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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.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.