What is worse: a sedentary lifestyle or smoking?

Controversial ? but: most authorities would say that, pound for pound (pun intended) it is smoking. However, far more people as a percentage of population are both sedentary and overweight, so its overall burden may be greater, but smokers suffer more cancer, heart disease, emphysema and other disorders than do non-smokers. The worst combination is both - people who smoke, are overweight and are sedentary.