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Feb 24, 2021 at 21:14 history edited Macaco Branco CC BY-SA 4.0
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May 11, 2018 at 14:10 comment added JohnP Re: the heart punch - The actual mechanism is related to the depolarization/repolarization of the heart muscle. If a sharp blow is delivered at the same time as the repolarization is occuring, it can disrupt the rhythm and stop the heart. You see this a few times a year in baseball, actually. The technical term is commotio cordis.
Mar 6, 2017 at 20:00 history answered Macaco Branco CC BY-SA 3.0