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I don't quite understand the mechanics of that.
Can you voluntarily hold your breath until you pass out?
Yes, you can. There are some skills that were once taught to swimmers regarding hypoxic training. These skills have very recently been outlawed as being too dangerous for the above reason.
The intent behind the skills was to teach competitive swimmers how to swim their race without taking a breath. Lifting your head out of water creates drag and can add tenths of a second onto your time. The article is really weak on details and I won't offer conjecture on what he did.
TwoBit
Many people have died deliberately holding their breath in pools. I didn't know that breath holding has recently become illegal. Is that a state or federal law?
Many people have died deliberately holding their breath in pools. I didn't know that breath holding has recently become illegal. Is that a state or federal law?