More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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People about to have surgery must tell their health care providers about all supplements they take.
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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 calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).
