An infant will reflexively breaststroke when placed when placed underwater and comfortably hold his breath... longer than many adults. - James Nestor

I read through reams of literature on the subject. ...The problem was, the sources were hundreds, sometimes thousands, of years old.

Seven books of the Chinese Tao dating... to around 400BCE focused entirely on breathing... Even earlier, Hindus considered breath and spirit the same thing, and described elaborate practices... to balance breathing and preserve... mental and physical health. ...Buddhists ...use breathing ...to lengthen their lives [and] reach higher planes of consciousness. Breathing... for all... these cultures, was powerful medicine.

[I]n many ways, rocks at the bottom of the deep sea, buried under a mile of Earth’s crust, or covered in bird crap on aren’t inanimate objects at all. They are undulating, "breathing" systems crammed with organisms so tiny and metabolizing so slowly that nobody ever noticed.
Most researchers never bothered. Seeking out extreme life requires traveling to some of Earth’s most far-flung and miserable environments. Only a handful of microbiologists and geologists have had the will, fortitude, and resources to endure weeks in the triple-digit heat within African mines, or months in the frozen expanses of Antarctica, or years sifting through the polluted oil fields of to find answers.