| Imported post
This question has been asked of several medical advisers in various diving mags, including Diver. The answer is that it's perfectly safe. Here's what DAN says: http://www.diversalertnetwork.org/me....asp?faqid=108
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"From birth, man carries the weight of gravity on his shoulders. He is bolted to earth. But man has only to sink beneath the surface and he is free." - Jacques Cousteau |