The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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There are 20 feet of blood vessels in each square inch of human skin.
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Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
Step 2 of gene cloning: The actions of a restriction enzyme and DNA ligase to produce a recombinant
The nurse conducts the health history as the first step in the nursing assessment
Step-Wise Treatment of Asthma in Children > 12 Years of Age and Adults