Did you know?
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.
Did you know?
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
Did you know?
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Visualization of heat exchange in an ectotherm and an endotherm.
Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
The 2012 U.S. presidential campaign rang with “get tough” cries to end Iran’s nuclear capacity and c
On March 25, 1911, as scores of young factory girls leaped to their deaths from the eighth, ninth, a
A gasoline testing kit, including an insulated container where water at 100°F is used to heat a ...
General mechanism of egg formation in animals