Hi everybody, I'm new to this forum but while I was searching the net for an answer to the question I'm trying to answer I stumbled on this site and noticed that a lot of ppl here know what they're talking about. When I was younger an unckle of mine once made my nephew black out in a matter of seconds without hurting him or anything, he just blacked out and woke up again a few minutes later, asking my unckle to do it again lol. He did this by doing something in the area around his neck which can't have taken a lot of force since then he would have hurt my nephew. About a week ago we were talking about this event (my unckle died and we were talking about what he was like and the time we had spent together with him, hadn't thought about it for years) and I became intrigued by it so I started my search. Now, I have found some stuff about a thing called the sleeper hold, where you block off the 2 carotid arteries in the side of the neck, causing a temporary black out. However, I'm pretty certain that my unckle didn't use that since he didn't put my nephew in a head-lock and he used only 1 hand... Could anybody here please explain to me how this is done exactly and what's the principle behind it? It would be very much appreciated since I have been searching fot the answer for days and haven't found it. Thx in advance, Christophe