Merry, Good question! First, and the most interesting thing I learned, was what I learned about the exercises I received to do post- surgery. I found myself forgetting to do them because they were more basic than what I did before surgery but naturally I couldn't return to those classes for several weeks. Well, I love my local Y and reached out to one of my instructors to ask if another class like the cancer survivors class that was on their program would be suitable and she suggested I check out a Silver Sneakers class, which is attended by mostly Medicare age folks several years older than me. But, she said it got a range of age and levels. Well, the classes I attended were so close to the post-surgery PT instructions I received it was amazing and kept me on track until I could start to go back to my old classes. (And, that instructor happened to attend the same classes I went back to and made sure I didn't "push it" when I returned!) As to while I had chemo- since I was very fortunate to not have more than a day or 2 of real side effects I tried to get outside and walk the dog or garden the first few days after each treatment just to move around because I learned rather accidentally when we got back from the first round and had left new plants that had to get in the ground or die that it really helped, even when I didn't think I had the mojo. Then, after the first week I would get back to classes. I did get in the habit of sleeping later from the recuperation weeks so I have adjusted my schedule and found classes I'd never imagined attending, like a "hip-hop" class. So, that's been my silver lining!