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Author Question: In a 2006 Pew Research Center study of unattached singles, more than half reported that they were ... (Read 59 times) |
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.
During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
It is difficult to obtain enough calcium without consuming milk or other dairy foods.