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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
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There are more sensory neurons in the tongue than in any other part of the body.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.