There's a reasonable chance that someone who's 49 but has drunk, smoked and done nothing to stay fit or keep mind active is "older" than a 69 year old who's tri

There's a reasonable chance that someone who's 49 but has drunk, smoked and done nothing to stay fit or keep mind active is "older" than a 69 year old who's tried hard to look after themselves. Thanks to increasingly anachronistic mandated retirement ages it's quite possible the fitter one is excluded from the workplace. Age seems like it's a bit of a gradient too.