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conejosusio140 karma

When I was a kid, I used to pride myself on being able to hold my breath for long periods of time. At fourteen, I swam the length of an Olympic pool, forwards and back, completely underwater. I also had thought of a trick I might be able to employ, though I never tried. I learned how to suck air into my stomach when I was little (it's actually very easy). Normally I'd just let it out in a big belch, but I thought that if I was trying to stay underwater for a long time, I might be able to burp up the air (a little at a time, of course, lest most of it escapes) and suck it into my lungs for added oxygen. I don't know if the oxygen would be corrupted by sitting in my stomach or not (I don't think so, though). Have you ever heard of anyone employing this method?