Maybe one of the trainers can answer this. I bought one of those body fat scales. The scale part is really accurate. It measures the same as my doctors scale and I can get off and on 8 times and still weigh the same. The BF measurement is different in the Am than the PM. Why is that and which one is accurate. I know I am not losing that much bodyfat during the day. I was 35.8 in the AM and 33.5 in the PM. It is always lower at night. I have hear that the low 20's is a healthy place to be. Any comments.