Breath
A fascinating exploration of the science of breathing, its impact on health, and techniques to optimize oxygen utilization and well-being.
Author:
Dr. Lauren Deville
C.A. Gray (Dr Lauren’s pen name)

Fabulous! I never thought an entire book could be written on the subject of breathing. Not only is it possible, but the history of “pulmonauts” is a fascinating one.
Some of the pearls from this book include the concept that the “use it or lose it” idea applies to breathing through your nose, and into the deepest recesses of your lungs, too. You can practice, and regain what has been lost. And a host of benefits await those who do.
There is such a thing as the perfect breath: 5.5 seconds in, and 5.5 seconds out. But not only that, there are a whole host of breathing techniques that can train your body’s utilization of oxygen to become more efficient.
CO2 is far more than just a biological waste product; it’s a critically important molecule in and of itself. So much so that training to “hold your breath” is incredibly beneficial.
A patient recommended this to me and I’ve since recommended it to about twenty more. Well worth the read.