After being diagnosed with cancer, pediatrician William Sears created a comprehensive, science based, head-to-toe program for living a long, fit life--and it worked. Now at the peak of health, Dr. Sears shares his program. This book explores how to keep each body system healthy and delay those usual age-related changes. Written in Dr. Sears's wise, accessible, and entertaining voice, this is a practical program to help you live your best life possible--pain-free, disease-free, stress-free, and medication-free. --From publisher description.