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Asthma cases in Americans are about 75% higher today than they were in 1980.
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Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.