David Blaine

The “magician” is going to try to hold his breath for nine minutes. Some interesting physiology goes into this:

Blaine has been working on maneuvers to increase his body’s ability to withstand carbon dioxide while also doing yoga-style moves to expand his rib cage and the connecting muscles to get more oxygen into his lungs during his final breath.

“We want him to be able to tolerate a higher level of carbon dioxide and also to function on lower oxygen levels than the average person,” said Krack, whose personal best is 6 minutes, 45 seconds.

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