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People about to have surgery must tell their health care providers about all supplements they take.

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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

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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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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

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