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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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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.