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The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

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Green tea is able to stop the scent of garlic or onion from causing bad breath.

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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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Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Otitis media. This illustration shows an inflamed tympanic cavity, which is the most common source o Otitis media. This illustration shows an inflamed tympanic cavity, which is the most common source o
Common Triggers of Asthma Common Triggers of Asthma
Some common eye disorders. (B) Cataract of right eye. (C) Stye. Some common eye disorders. (B) Cataract of right eye. (C) Stye.
A typical distributor-type diesel injection pump showing the pump, lines, and fuel filter. A typical distributor-type diesel injection pump showing the pump, lines, and fuel filter.
The four most common hexoses The four most common hexoses
Neither heat-killed S-type nor live R-type bacteria can kill mice, but simultaneous injection of bot Neither heat-killed S-type nor live R-type bacteria can kill mice, but simultaneous injection of bot
Video: Retina

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