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

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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

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In old age, as in all other stages of the life course, people find life more pleasant if they have ... In old age, as in all other stages of the life course, people find life more pleasant if they have ...
Ads from the public service campaign in the late 1960s and early 1970s that encouraged people to get ... Ads from the public service campaign in the late 1960s and early 1970s that encouraged people to get ...
Individuals from highly divergent lines created by artificial selection Individuals from highly divergent lines created by artificial selection
Video: Hormonal regulation of pregnancy - weeks 2 through 38

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