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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

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Everyone has one nostril that is larger than the other.

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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

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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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Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

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