How hard do you need to hit someone to knock them out without badly hurting them and how long would it last?

I meaning with your fist but if you know how to with an object please say and if theres a point in the body where you can hit or pinch that would knock them out please say as well.How hard do you need to hit someone to knock them out without badly hurting them and how long would it last?
i think he wants to know in case he needs to defend himself so he can do it without hurting the person.





first of all you may not need to knock them out as for many a broken nose would work and not cause serious damage





i would suggest a strike to the jaw in which you cause the mandible (lower jaw) to slide left or right. There is a cranial nerve just behind the mandible. The second the nerve is tapped by the movement of the bone, it sends a shock to the brain to shut off all non-autonomic activity. I don't know why but it does and it doesnt cause serious damage.





you can also cut off blood or air supply by holding them in a choke hold or strangle for long enough but i DONT recomend this as it can cause SERIOUS brain damage.








can i please warn you first that there is never a guarantee that you will not seriously hurt them when you know someone out.


You are causing traumatic concussive damage to the brain when a knock out occurs.








*edit* NEVER aim for the temple when punching it KILLS why do you think kickboxers were the helmets with padding around the temlpes.How hard do you need to hit someone to knock them out without badly hurting them and how long would it last?
If you hit someone hard enough to cause them to lose consciousness, you've caused brain injury. Maybe in the movies someone can get hit and get ';knocked out'; and be ok. Not so much in the real world.
Okay, 1. You Punch them right in the temple!





thats pretty much it
who are you going to hit and why?