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--- Trey <trey@ne*.co*> schrieb: > Wendell, this contrast sharply with studies that > include "commercial" air > divers who went to 200 feet. The other demarcation > is bottom times - the > long 100 foot working dives and any of the 200 range > produced lesions. Well, yes and no. There have been a number of studies that look at divers and spots in the brain. However, this one, for all its limitations, was well controlled for age, BMI, and bad habits, and included both military and commercial divers, including some commercial saturation divers. The real conclusion that can be drawn from the data is that elderly- ie older than 40- divers have funny little spots in their brain on MRI, but at no greater a rate than old farts with the same eating, drinking, and smoking habits. Bottom line, you want to not get brain damage, don't get fat, smoke, or drink too much. Diving doesn't seem to factor in. BIG note: I think that the diving profiles you're talking about may be getting people into trouble in terms of cumulative brain injury because of the habit of decompressing people in water up to 15 meters, running them up to the surface, then throwing them into the chamber and recompressing them before they get clinical bends. I just can't see how that doesn't cause problems over time. Wendell G __________________________________________________________________ Do You Yahoo!? Gesendet von Yahoo! Mail - http://mail.yahoo.de -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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