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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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Excessive alcohol use costs the country approximately $235 billion every year.
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Cyanide works by making the human body unable to use oxygen.
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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).