The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.
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Thyroid conditions may make getting pregnant impossible.
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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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There are 60,000 miles of blood vessels in every adult human.
Amazing NASA Pictures Collection
A schematic of a Stanadyne diesel fuel injection pump assembly showing all of the related ...