Went to the gym the same time and did the same thing as usual, but for some reason the treadmill was very difficult. I discussed it with a friend and figured out it might be due to the fact that it was quite warm today and I was already more than warmed up when I arrived to work out. The bike wasn't any effort at all; in fact I find it restful in a way to sit and have the fan blow on me from across the room. If I am perspiring when I finish the treadmill, then I cool down when I go over to the bike. I'm thinking I might reduce the speed of the treadmill from 3.5mph down to 3 or so. See how it goes.