I already listed reasons as to why America is better. We have more GDP, more room for social mobility, we have the best doctors and medical facilities in the entire world, we have more choices on products than anywhere else, we have more room to live, and we're basically away from all international conflict with Mexico and Canada being the closest threats to us. Yeah, we could live longer. That would mean people in America stop using their economic advantage to buy more food and do more to stay in shape. However we don't. Why? Cuz 'Murica