While studying the effects of accumulated stress on the nervous system, I began to suspect that most organisms have an innate capacity to rebound from threatening and stressful events. Peter A. Levine More Quotes by Peter A. Levine More Quotes From Peter A. Levine My career began somewhat accidentally. In the 1960s, I started a practice in the fledgling field of mind-body healing. Around that time, it was completely in its infancy. I had been developing a protocol to use body awareness as a tool for stress reduction. Peter A. Levine stress practice healing time Basically, in the fight-or-flight response, the objective is to get away from the source of threat. All of our muscles prepare for this escape by increasing their tension level, our heart rate and respiration increase, and our whole basic metabolic system is flooded with adrenaline. Peter A. Levine escape adrenaline tension heart