Does your heart stop when you sneeze?

skysmom65

Your heart does not stop when you sneeze, and with great effort you could probably keep your eyes open during a sneeze. Sep 04 06, 1:12 PM

zbeckabee

The heart beats because a small part of it called the SA node has a "pacemaker" activity. What this means is that there is a type of electrical cycle going on that triggers beats roughly once every second. Sneezing does not change this electrical cycle, so the heart keeps beating. Said a different way, the muscle of your heart is a big mass of electrically active tissue, and this electrical activity will not stop because of a sneeze, or anything else for that matter. And yet, a sneeze is definitely a complex cardiovascular event. As you "ah" and "choo", you significantly change the pressure inside your chest, which in turn affects blood flow and thus the beating of the heart. http://www.madsci.org/posts/archives/mar98/890925984.An.r.html Sep 04 06, 2:16 PM

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