Breathing smoggy air diminishes the ability to breathe deeply in overweight people more than it does in lean folks. The new finding mirrors an effect recently seen in rodents.  http://louis1j1sheehan.us

About a decade ago, Milan J. Hazucha of the University of North Carolina (UNC) in Chapel Hill and his colleagues exposed people for 90 minutes to ozone, the primary respiratory irritant in smog. The goal had been to evaluate the effect of age on how sensitive adult lungs were to ozone