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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.