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The sex of your cells matters when it comes to heart disease
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The sex of your cells matters when it comes to heart disease

by Brian Aguado, The Conversation Hearts with aortic valve stenosis must pump harder to push blood through a narrowed aortic valve to the rest of the body. Credit: SuneErichsen/Wikimedia Commons, CC BY-SA Most mammals, including humans, have two sex chromosomes, X and Y. One sex chromosome is usually inherited from each parent, and they pair up as either...