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There are approximately 3 million unintended pregnancies in the United States each year.
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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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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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There are more bacteria in your mouth than there are people in the world.
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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.