There are 20 feet of blood vessels in each square inch of human skin.
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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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Approximately 25% of all reported medication errors result from some kind of name confusion.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
Experiment of Lederberg and Tatum demonstrating gene transfer in E. coli.
The Processes of Synaptic Pruning
The crude oil refining showing most of the major steps and processes.