Since August I have given up my elliptical trainer aerobic exercise in favour of doing weight resistance exercise. I think thats helped me, although I sense that part of me badly wants to work out. However, the PEM payback is too bad to contemplate that, so I stick to 10-minute walks and weights. Now its winter here and at night I am feeling the cold a lot more than before, especially in bed at night. I wonder if this is down to my lack of aerobic, and I wonder if any of you guys have experienced that and what you did about it?