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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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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.