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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.
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Excessive alcohol use costs the country approximately $235 billion every year.
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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.