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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).