When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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On average, the stomach produces 2 L of hydrochloric acid per day.
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More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.
Chordate characteristics
Characteristics of the three types of muscles.
Metamorphic Rocks
Pediatric Nomogram Used for Determining Body Surface Area