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Author Question: At a competitive equilibrium with no externalities, taxes, subsidies, public goods, common ... (Read 56 times) |
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.
Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.
Women are 50% to 75% more likely than men to experience an adverse drug reaction.
Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.