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Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

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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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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

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There are approximately 3 million unintended pregnancies in the United States each year.

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