There are 20 feet of blood vessels in each square inch of human skin.
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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.
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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Easter Island—an example of Carrying Capacity Overload
Comparison of Paper Medical Records and Electronic Health Records
Comparison of Paper Medical Records and Electronic Health Records
Measuring Oral Temperature Using an Electronic Thermometer