Michael Murphy has spent years cataloging the ways in which human abilities can be transcended and the human body transformed. Here he describes how humans may consciously control their physical evolution through religious and athletic disciplines, biofeedback and medicine.

Michael Murphy is founder of the Esalen Institute in Big Sur, California. He is author of Golf in the Kingdom, Jacob Atabet, The End of Ordinary History, The Psychic Side of Sports and The Future of the Body.