BMI is an estimate of your body fat based on your … What he is admitting is that the bodybuilding lifestyle at the pro level requires extreme measures, when taken to these levels it will drastically shorten your life. 2) Physical health and basic strength. You’ll get your ass off the couch. If the question is just does bodybuilding shorten life span I would pretty confidently say no. Another sure way to improve your chances for a longer, healthier life is to shed excess weight. Again, the norm is a 9 to 5 job, sitting at a desk in front of a computer, barely moving and sitting with horrible posture. The extremes that top level PRO bodybuilders(and other athletes) have to take are a different story. Diuretics, extreme eating, just being 250-300+ lbs are some things the human body is just not used to. Your question is very broad, and, the answer is not as simple as you imply. “Being obese—with a body mass index (BMI) higher than 30—is a risk factor for early death, and it shortens your active life expectancy,” Ferrucci says. – rrirower Feb 5 '15 at 2:52 But, certainly, an active life that includes some form of fitness would certainly improve the quality of that life. There are more factors involved.