The Secret to Holding your Breath Longer
How long can you hold your breath underwater? If you’re looking for a fall challenge, try these techniques for lengthening your breathing time…
This article has some good exercises to help you breathe deeper and longer.
And here’s a little bit of Tim Ferriss‘ advice.
And just as Tim says – don’t do this without supervision if you’re going to try the exercises under water! Take a friend or a coach with you. No goal is worth dying over.