There's an article on the BBC news today that is frankly quite scary.
Someone who looks perfectly fit and healthy, suddenly collapses and goes into cardiac arrest.
I'm sure we all know this can happen but is presumably very rare. Rare enough for many of us to not even give it any thought. But this article makes it all the more real.
This gets me to thinking. Is it a reasonable assumption that someone you train with will know what to do in that event?
It also got me to thinking, when sparring, where some clubs have strict rules meant to protect their members, are the rules based on sound science? For example, at my last club, we weren't allowed to strike the head, or anything below belt height. Ie we could only strike to the torso. In reading up on CPR I came across articles that said a blow to the chest can also shock the heart into abnormal rhythm so CPR is actually dangerous if the recipient doesn't need it. By extension then, a wallop to the chest could cause a cardiac event, which opens up many questions around training practices and rules, and even applications in self defence.