It's only a little patch but I didn't think I could manage it, it was very long too. However I did and it got easier as I progressed. I had to have quite a few rests. Now, an hour later, I feel much better than this morning. When I was in the Brompton for a week and really doing nothing my blood pressure and SATs both got lower. On the morning I had a bike exercise test they were both 90 which is pretty low. The test was really exhausting. When I had my obs done a couple of hours later my blood pressure was 115 which is high for me and my SATs 95 which is also much better than normal. I deduce from this that exercise is good for you!