From the introduction: > The act of controlling one’s breath for the purpose of restoring or enhancing one’s health has been practiced for thousands of years a

From the introduction: > The act of controlling one’s breath for the purpose of restoring or enhancing one’s health has been practiced for thousands of years amongst Eastern cultures. For example, yogic breathing (pranayama) is a well-known ancient practice of controlled breathing, often performed in conjunction with meditation or yoga, for its spiritual and perceived health-enhancing effects.