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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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