Really it is a fight term that does not translate over to the medical feild. In trauma medicine thier is only one kind of KO...the kind that puts you out. The reasons are irrelevent.

Also the BP KO is a strange one. If you were to hit someone hard in part of the body and make the BP drop I would assume you are doing some major damage. The bodies blood pressure is monitored very well inside and normally it is someone being taken rapidly out of homeostasis that causes a drop in BP that rapidly....get thee to a MD!!!!

Here is the scary part...and everyone forgets this....any time you get knocked out...by choke out or impact, you are doing damage...ergo causing a brain injury...and getting hit does the same thing.

before anyone goes out and starts training, you have to figure out if the risk is worth it...personally I try NOT to get hit and toned down my training to a more "minor contact" style to avoid brain damage....I cant afford anymore brain damage

You're Canadian...You couldn't afford it to start with! =)

Wow, and insult over nationality by a American...and they wonder why Americans buy Canadian flags to put on their clothing and back packs when they travel

Seriously, the cold keeps our brains safe! That and the beer running in the brooks up here helps us maintain the right level of pickling, we can take shots to the head like it was tuesday!