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Our Arteries
Men: Men’s arteries are large compared to women’s.

Women: Women’s smaller arteries make procedures like bypass surgery trickier. A bypass is a rerouting of blood from a blocked or nearly blocked blood vessel to a healthy one. Small vessels are harder to work worth, which may be part of the reason that, in a review of some 300,000 people undergoing bypass surgery, the death rate was higher in women than in men.
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