I made it to the gym this evening, after not going for a few days. It was so incredibly hot though, and I felt so lethargic that I could barely move. Certainly didn't raise my heartrate by much! I spent an hour on the bike and the cross trainer (very, slow and lowest level!) and some very light weights. Pathetically, I'm looking for reassurance that this was better than nothing - I will have burned at least a few more calories than I would've sitting on my backside watching crap TV??