This appears to be what you're talking about: http://www.telegraph.co.uk/news/health/news/9359212/Obese-and-smokers-less-of-a-burden-on-the-NHS-than-the-healthy

This appears to be what you're talking about: http://www.telegraph.co.uk/news/health/news/9359212/Obese-and-smokers-less-of-a-burden-on-the-NHS-than-the-healthy-who-live-longer-report.html http://www.telegraph.co.uk/news/health/news/9359212/Obese-an... The research was done by a think-tank called The Institute of Economic Affairs ( http://en.wikipedia.org/wiki/Institute_of_Economic_Affairs http://en.wikipedia.org/wiki/Institute_of_Economic_Affairs ). Unfortunately I can't find the actual research information behind their study, but I did find they were paid by tobacco companies for doing it - http://www.theguardian.com/society/2013/jun/01/thinktanks-big-tobacco-funds-smoking http://www.theguardian.com/society/2013/jun/01/thinktanks-bi...