Re: fecal odor

There are several...but one of the very best is The Tao of Natural Breathing: For Health, Well-Being and Inner Growth by Dennis Lewis. The Taoist arts include a multitude of breathing practices...you'd be amazed at how many different types of breathing there are! I know that yoga also emphasizes the importance of the breath...if you're looking for in-depth research I would make sure to check out cross-references in yoga and Taoism/Daoism. Tweet