http://news.bbc.co.uk/1/hi/health/6944279.stm
"Fitties" can take solace in the fact that the "fatties" with a reduced life expectancy will subsidise their retirement/pensions by not drawing off the public purse for so long after retirement. Also, surely the incentive to see off the Govt for as much dosh as you can by living longer is as good as reason as any to get fit(ter).