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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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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The human body produces and destroys 15 million blood cells every second.
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There are more sensory neurons in the tongue than in any other part of the body.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
Kidneys
Fraternal twins share about 50 percent of their segregating genes.
Example of a patient statement.
The urinary system: kidneys, ureters, bladder, and urethra.
Share of Human Capital in Wages in Advanced Countries