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In 1844, Charles Goodyear obtained the first patent for a rubber condom.

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Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Increasing access to care for teen mothers is important because they have a higher rate of pregnancy ... Increasing access to care for teen mothers is important because they have a higher rate of pregnancy ...
Potency and efficacy: (a) Drug A has a higher potency than drug B. (b) Drug A has a higher efficacy ... Potency and efficacy: (a) Drug A has a higher potency than drug B. (b) Drug A has a higher efficacy ...
Two types of front-engine, front-wheel drive. Two types of front-engine, front-wheel drive.
Oil pressure relief valves are spring loaded. The stronger the spring tension, the higher the oil ... Oil pressure relief valves are spring loaded. The stronger the spring tension, the higher the oil ...
North Korea: Labor Issues North Korea: Labor Issues
Share of Human Capital in Wages in Advanced Countries Share of Human Capital in Wages in Advanced Countries
Video: Fetal development - Weeks 9 to 38

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