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When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.
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.