Bernie Clark, author of Your Spine, Your Yoga, returns to the show to talk with J about his new book and the important perspective it provides. They discuss the notion of “neutral spine,” the myth of flexibility in yoga, understanding stability and strength, the concepts of stress and load, variation and adaptation in our systems and structures, the “anti-fragility curve,” functional movement, what “optimal” means, and how important it is for each person to develop their own sense of awareness. This episode is sponsored by YogaAnatomy.net.