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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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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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Cyanide works by making the human body unable to use oxygen.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.