I'm 20 pounds overweight and getting a bit concerned. This morning I got out and ran 6.5 miles in one hour and 15 minutes. The surrounding temperature was below zero, 15.5 degrees based on radio. However, there isn't any apparent change reflected on my personal scale, at least less than 0.5 pound. Could that be right? Even my car should lose more than one pound by driving 6.5 miles.