Need a mens weight loss camp, but not really sure? Life expectancy of a moderately obese person is shortened by 5 years, but if you are Morbidly obese you can lose up to 20 years of life. That's not all. The incidence of diabetes and many other health complications will reduce the quality of life to the point that before you know it… you become a spectator. Don't resign yourself to being a non-participant in life.