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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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.
An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.