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Author Question: The Fitness Shop is considering ordering a special model exercise machine. Each unit will cost the ... (Read 60 times) |
There are 20 feet of blood vessels in each square inch of human skin.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
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-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.