If you are physically fit,you will live a longer and healthier life:An interview with Dr. Steven N. Blair

Exactly 30 years ago,a benchmark study published in The Journal of the Ameican Medical Association(JAMA)titled"Physical fitness and all-cause mortality.A prospective study of healthy men and women"~1 sharpened our view of the importance of physical fitness in health and helped create a new era of"exercise is medicine".