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In 1864, the first barbiturate (barbituric acid) was synthesized.
Blood is approximately twice as thick as water because of the cells and other components found in it.
Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.
Vaccines prevent between 2.5 and 4 million deaths every year.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
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