Why are the Japanese living longer?

the 12 000 dives surveved by us included episodes of rapid or uncontrolled ascent.For what it is worth, we have anecdotal reports of six divTing incidents relating to asthmatic divers-four in which there were rapid ascents and two in which divers developed bronchospasm underwater.In all of these cases the divers concerned surfaced safely.As medical examiners who dive we make it our business to discuss with our clients the examination, the implications of any abnormal findings, and any possible theoretical risks.We believe that this approach is adequate for medicolegal purposes.It would seem reasonable to advise people with well controlled asthma who wish to dive that they mav do so as long as they understand the theoretical risks.The real risk, if in practice there is one, would seem slight according to currently available data.Therefore the British Sub-Aqua Club's current recommendations seem adequate.