This sounds like a great uplifting story. Ironically I have a close friend who’s a marathon runner and has just had a mastectomy. Breast cancer when found early is beatable! Check those boobs folks! Report all abnormalities. I think during or after treatment it’s great for a bunch of women to have a running group. Theirs the exercise and more importantly getting out, meeting people in a similar situation and escaping the “you can’t do that you’ve cancer” brigade.