For 1), if by "traumatic" you mean "bodily trauma" then it's actually the opposite. If your heart stops due to bodily trauma, it does so as a result of other pr

For 1), if by "traumatic" you mean "bodily trauma" then it's actually the opposite. If your heart stops due to bodily trauma, it does so as a result of other problems like a lack of blood volume, or something physically impairing your body's ability to oxygenate, none of which are improved by CPR.