I’m not sure why I finally decided to give running a try. I think it was a stealth move by my husband. He has been a runner since his schooldays and even ran the London Marathon 15 years ago, but I’d never been tempted to join him because it was “his” thing. “My” thing, I have always said, is dance. Cue a slightly condescending voice: “Dancing is so much more creative and just as good for you in terms of fitness.” But the truth is I’m now in my mid-50s, and dance has fallen by the wayside becaus