Light cigarettes are in fact Worse as a whole as previously heavy smokers switch brands and start smoking lighter cigarettes The effect is real and had been st

Light cigarettes are in fact Worse as a whole as previously heavy smokers switch brands and start smoking lighter cigarettes The effect is real and had been studied. In fact, all of the effect size attempted to be attributed to 'warning labels causing cancer' can be explained by this paper here http://www.ncbi.nlm.nih.gov.ezproxy1.library.usyd.edu.au/m/pubmed/16100660/ http://www.ncbi.nlm.nih.gov.ezproxy1.library.usyd.edu.au/m/p...