I weigh 335 lbs, bipolar and all, and there's no way I would trade the BP to be 165 lbs more than I already am. It is NOT easy to lose weight; after all, food is the only addictive substance that you can't quit totally. I have a hard time tying my shoes, shopping for groceries (I refuse to use a scooter), standing up in the shower for 20 minutes to wash and condition my hair. I have no exercise tolerance, get short of breath with only mild exertion. I'd never survive being 500 lb.