If you could remove all of your skin, it would weigh up to 5 pounds.
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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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Everyone has one nostril that is larger than the other.
Structure of a typical prokaryotic cell
Blank cell diagram
Color-enhanced electron micrograph of E. coli undergoing cell division