basicly its when you feel like your starting to lose control
of your normal bodily functions like the abillity to make rational judgement, and as we have already said you will start to feel drunk, this dosent just happen at depth, i tend to find im more prone to narcosis on repetitive short shallow dives than i am on long deep deco dives but obviously nitrox cuts the narcotic effect down but then you have to bear in mind o2 toxicity which is far worse than narcosis. there is a theory that if you take a video camera on your dive and the watch the tape after you will be amazed at whats on the tape and unable to recall a large %age of the data stored on it!! ive tried it and believe me its true but hey at £2 a fill narcosis is cheaper than lager, so work on the at the bar theory !! you know how many pints you can handle so when you start to hit your bar limit unterwasser its time to come up a bit!!
IN AMERICA ANYONE CAN SUPPORT THE PRESIDENT ITS JUST ONE OF THE RISKS YOU TAKE BY LIVING THERE!!!REGARDS MONICA!!.