What on earth are you talking about? Contractions are a normal part of diving/breathold. They are certainly not dangerous, they are good. The action permits the lung to upen up and take more oxygen. The vast majority of divers experience contractions, whether they are aware of this or not and you certainly don't get them when you reach "dangerous" levels. That is preposterous. You certainly cannot tell how many or how strong contractinos individuals will feel where, as everybody is different, but that is the point of focusing on your body in FREEDIVING training, to learn what is happening to it. You are spreading misinformaiton. What I wrote was directed at experienc divers and those who had taken the free-diving course with Walter Steyn. Why don't you watch the Erez Beatus Black out video and see what he says about experiencing "contractions". I think you will find that you will have learned something. You don't really expet people to dive to 25 meters and stay at depth for a bit then come back up without experiencing more than one contraction? Waaaay off mate.

I would NEVER recommned a begginer or an intermediate without training (basically anyone who does not really know what they are doing) to attempt to do anything dangerous or beyond their level. It is upto the people to whom I directed the post to inform themselves on the practices I brought up, they can decide for themselves as they are responsible adults. I am a little angry that you wrote that, especially knowing that what you said is 100% factually wrong.

If you dive and you want to come up, come up. Contractions or not. Every idiot knows that, but if you are not aware of what is happening in your body (ie. contractinos) chances are you are gonna panic and come to a WRONG conclusion about them. I urge anybody who has read this to watch Erez Beatus Blackout Video and draw their own conclusion about contractions.