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Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
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The average office desk has 400 times more bacteria on it than a toilet.
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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.
Did you know?
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.