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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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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%.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.