Agree it makes a difference to see them try. It can be an awful sight (to sound unkind) but I always say to myself: "Good on them for having a go and trying to do something about their blubber". However...I'd have to say that in my opinion the real key to losing weight is not exercise but diet. It seems so many people think it's ok to pig out and then go for a run to try and stop the kilos piling on and it doesn't work. It takes a lot of exercise to get rid of even a chocolate bar let alone a four course meal of rich food replete with wine, cake and ice cream ! Exercise is merely a complementary component of weight control and seems to be taken as the guilt option - in my opinion.