What is an aortic dissection? The heart condition linked to Lindsey Graham's sudden death

What is an aortic dissection? The heart condition linked to  Lindsey Graham's sudden death
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The aortic tear that likely caused the sudden death of Sen. Lindsey Graham is a medical emergency that can rapidly kill. The aorta is our largest artery, like a highway that arches up from the heart and then curves back down through the abdomen — carrying oxygen-rich blood to the rest of the b...