Please note: This is a companion version & not the original book.Sample Book Insights: #1 I, as well as many other women, men, and children, have benefited from the breathing techniques taught by the Russian doctor Konstantin Buteyko. I began teaching these techniques to others in 2002, and my life has changed for the better in numerous ways.#2 The practice of breath control for health and spiritual progression has been around for centuries in Eastern cultures. It has been backed up by decades of scientific research that will help you understand why it works and how to use it.#3 Functional breathing is the process of retraining your breathing habits so that they are more functional, and less dependent on shallow breathing. It can help you focus, concentrate, and sleep better, as well as reduce anxiety.#4 Altitude training involves lower oxygen levels, which helps the body adapt and improve its ability to use oxygen. It can improve an athlete’s ability to tolerate breathlessness, as well as their running economy and repeated sprint ability.