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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.
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The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
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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.
Mars's average distance from the Sun is roughly 230 million km (1.5 AU) and its orbital period
The cranium of early African H. erectus KNM-ER 3733 is nearly 1.8 million years old.
The remarkably complete skull of a 3-year-old Australopithecus girl; the fossil is 3.3 million ...
U.S. Patents and Patents per Million Residents, 2010
Earth 340 Million Years Ago
Earth 150 Million Years Ago