I know what it takes. I haven't done it, but a couple of my friends have, and they've described the herculean effort required. The things people usually expend

I know what it takes. I haven't done it, but a couple of my friends have, and they've described the herculean effort required. The things people usually expend their effort on * Maintaining relationships with friends, family, and loved ones * Excelling at their job * Reducing bad habits(like drinking, tv watching, smoking, etc) * Pursuing hobbies * Raising children And all of them have had to make significant sacrifices across the board to maintain their weight.