Motor racing journalism is not conducive to fitness. Two things recently brought that home.
Talking to Anthony Davidson as Super Aguri were in the final throes, he wanted to get across that with weighty KERS devices just around the corner, he was quick and he was light - just 56 kilos to be precise. Even more pertinent now, he reckons.
That puts him at eight stone 11 pounds. I can remember being exactly that weight when I was about 17. Playing the odd physical sport and working out quite a lot, I can recall desperately wanting to be nine stone. I'd still love to be, except that now I'm looking at it from north of 12 and a half ...
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I realised just how silly the situation had become when I settled down to watch the Joe Calzaghe/Bernard Hopkins fight recently and saw that the fighters weighed in at 173lbs, or 12 stone five. I realised with some horror that I would not have made the weight. We're talking light-heavyweight here.