The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.
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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
