What amazes me is that I always weigh about 3 lbs. less in the morning than I do when I go to bed at night. I mean, where does 3 to 4 lbs. go in the 8 hours (max.) that I'm asleep. Sure there's the early morning urine, but no way is even close to 3 pounds. I assume a certain amount of water weight is exhaled as vapor, but that can't be more than a few ounces. So the rest must be metabolism, right? But if my body can burn off 3 lbs. when I'm ASLEEP, how come I don't burn off that much when I'm AWAKE and actually doing things? Whoever invented metabolism has some explaining to do.