To stay alive, Jack Pritchard had to change his life. Triple bypass surgery and medication could help, the heart surgeon told him, but no technical fix could release Pritchard from his own responsibility for changing the habits of a lifetime. He had to stop smoking, improve his diet, get some exercise, and take time to relax, remembering to breathe more deeply each day. Pritchard’s doctor could provide sustaining technical expertise and take supportive action, but only Pritchard could adapt his ingrained habits to improve his long-term health. ...