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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.
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.
There are more nerve cells in one human brain than there are stars in the Milky Way.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.