This article is available in full from the British Medical Journal Web Site.
By Odd-Egil Olsen et al – Sports Trauma Research Center, University of Sport and Physical Education, Oslo, Norway
BMJ  2005;330:449 (26 February), doi:10.1136/bmj.38330.632801.8F (7 Feb 2005)
Introduction
Regular physical activity reduces the risk of premature mortality in general and of coronary heart disease, hypertension, colon cancer, obesity, and diabetes mellitus in particular.
However, [...]