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Vaccines prevent between 2.5 and 4 million deaths every year.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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%.