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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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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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Asthma cases in Americans are about 75% higher today than they were in 1980.
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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.