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Cyanide works by making the human body unable to use oxygen.
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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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The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.