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Did you know?
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
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Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.