Abdominal aortic aneurysms (AAA) are caused by progressive weakening of the aortic wall creating a “ballooning” of the vessel. If this aneurysm ruptures, it can cause massive internal bleeding. A study showed that smoking increases the risk of developing an AAA, and “people who quit [smoking] saw their risk decline by 29 percent”. Read more about the effects of smoking on aortic aneurysms here.
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