In article <31B46DDD.35F9@interaccess.com>, John Fractal <firstname.lastname@example.org> wrote: >Einar Andreas Rodland wrote: > >(snip) > >> In a sense both are right ... and wrong. When evaluating the effect of >> say smoking, observing one disease only may not give the whole picture. >> You have to look at average life-span. As far as I remember, a >> colleague of mine told me the average difference between smokers and >> non-smokers is 6 years.
I read smoking reduces ones life span by 17 years. Excercising increased life scan by 1 year.