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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.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
The longest a person has survived after a heart transplant is 24 years.
All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.