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Author Question: The American airline industry in the 1920s made most of its early profits through a. mail ... (Read 42 times) |
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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).
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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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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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There are more bacteria in your mouth than there are people in the world.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
When Union troops pushed toward Richmond in June of 1862, these slaves crossed the Rappahannock Rive
A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan