Obesity can shorten lifespan because it increases the risk of a number of health conditions such as diabetes, high blood pressure, and heart disease. These conditions reduce the quality of life of the person suffering from them.1
Bariatric surgery may help in increasing life expectancy. Some studies comparing risk of death associated with staying morbidly obese and undergoing bariatric surgery indicate that risk of death may be reduced in patients undergoing surgery (89 % reduction as per the quoted study).2
Disclaimer: Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider.
2. Christou NV, Sampalis JS, Liberman M, Look D, Auger S, McLean AP, MacLean LD. Surgery decreases long-term mortality, morbidity, and health care use in morbidly obese patients. Ann Surg. 2004 Sep;240(3):416-23; discussion 423-4.