When the human body takes a deep breath and dives down into the ocean, it reflexively sets off a series of physiological responses so magical that it has been called "The Master Switch of Life."

To connect with that switch, the fellas connect with Whitey Baun, a freediving master who at age 72 has been called the dean of the underwater world in Massachusetts. A day after taking Billy for a humbling, frightening, and ultimately inspiring dive off the coast, Whitey sits down at the mic to talk about his extraordinary life, and the meditative calm he can only find at the bottom of the ocean.

Here's a link to some great information about the Master Switch of Life, excerpted from the excellent book "Deep" by James Nestor:
https://magicseaweed.com/news/the-master-switch-what-happens-to-your-heart-when-you-dive-into-the-sea/6771/