"...an inspiring and tremendously hopeful book." -Fritjof Capra, coauthor of The Systems View of Life "...one of the most important books for optimizing the human experience." -Tom Cronin, Founder of Zen Academy and bestselling author of The Portal "...a breath of remarkably fresh air." -Shakti Saran, systems thinking consultant, Cornell University Why is it that a billion people in the world are obese and one in three suffer from chronic disease? How are our struggling healthcare systems linked to the growing gap between rich and poor or the climate crisis? Is our diet cooking the planet? Can we prevent cancer with a walk in the woods, reduce heart attacks with a positive mindset, or grow our brains by meditating? The Ripple Effect answers these questions with a bird's-eye view of our global health and environmental crisis, exploring where we've gone wrong and what to do about it. Instead of our typical reductionist lens to examine these challenges, what is required is a "systems view"-looking holistically at the interplay of our lifestyle habits, mindsets, social relationships, and environmental and spiritual (dis)connection to encourage joined-up thinking on how to heal ourselves and our planet. Dr. Revell shows how simple lifestyle changes such as eating better, sleeping smarter, moving more, relaxing deeply, and connecting with nature (both literally and spiritually) can cause a big splash that transforms the world.