Quitting smoking has favorable metabolic effects

[Northerner]

People who quit smoking have improved metabolic effects, a new study finds. Study results showed that smoking cessation over 8 weeks was associated with a slight and transient worsening of central fat distribution, followed by a larger, favorable reversal over subsequent months. Over 24 weeks, hepatic glucose output improved in relation to lifestyle changes, weight change correlated directly with reduced nicotine metabolites, and reduced carbon monoxide and/or nicotine metabolites correlated with increased glucose uptake and utilization of carbohydrate substrates as the preferred metabolic fuel.

http://www.sciencedaily.com/releases/2015/03/150306102505.htm