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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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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.