Lately at the gym, during the part of my aerobics workout where I'm struggling to keep myself going, I always seem to hear the same ad. Perhaps because I'm in such a receptive frame of mind, it calls out to me from the gym radio. The ad is for something called a carb blocker, all natural, with no side effects. If you take it, the claim is you can eat all the carbs you want without having to exercise to keep from gaining weight. The tagline for the ad says, 'It sounds too good to be true, doesn't it? Well it is.' ...pause... Then I chuckle, finishing the sentence in my mind with 'too good to be true'. Then I chuckle again and finish my aerobics.