“If, with training and patience, you can perform the same exercise workload with only 14 breaths per minute instead of 47 using conventional techniques, what reason could there be not to do it?” wrote John Douillard, the trainer who’d conducted the stationary bike experiments in the 1990s. “When you see yourself running faster every day, with your breath rate stable … you will begin to feel the true meaning of the word fitness.”16
