I just overheard an interesting snippet from a morning TV programme, “A research team has found that a 20 minute walk every day can add years to your life,” Leaving aside the fact that most people know this anyway or at least, suspect it, it was good to hear. Confirmation that something one enjoys is good for one, is always welcome. I have to ask though, was this research programme set up just to establish this fact or was it part of a larger programme and this gem just one of many conclusions reached? I should not mock. Where would we be without research? In caves, I daresay. After all,…