“They are secrets that, once revealed, make the divers not just more effective at their craft, they argue, but more effective, conscious, skillful, and thoughtf

“They are secrets that, once revealed, make the divers not just more effective at their craft, they argue, but more effective, conscious, skillful, and thoughtful as human beings” If you can suspend your initial disbelief and are willing to do some reading on the topic of breath work, I recommend the writing of James Nestor and of course Wim Hof. Divers are using these techniques in order to train to hold their breath a long time, but the claims of the other benefits are verifiable and measurable in labs as well.