how long?

[surfiemullet]

I do surf lifesaving to keep fit and we get taught you can only last 3 min without oxygen before you get brain damage is this true?
regards josh,

 

[Pekka]

read this article....

http://www.deeperblue.net/content/2001/freediving/sambaandblackout/1.shtml
It explains much of that you want to know....thanks be to Peter Sheard

 

[thin_air]

the image i attached is from my Red Cross First aid Manual. I would imagine that a few minutes could be added to the numbers since the people you are looking after probably have a higher then average O2 efficiency(sp)
im gonna be meeting with my instructor next weekend so i will ask him then.
still i would say that 3minutes is a bit short but i could be wrong

to be safe i would try to make sure they are back at the surface in less then a minute :hungover

good luck

 

[thin_air]

could one of you nice people that is really smart with computers tell me how to attach the image so it shows up in the post?

thanks

ok, after i posted this i found out how so could an admin remove this post , thanks