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Author Question: The free use of the U.S. mail by members of Congress for official business is called A) bulk ... (Read 5 times) |
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.
Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.