How come I am aging so well at 56 years old and have no real medical problems when I drank, shot heroin, and smoked cocaine most of my life, and yet my compatriots and co-conspirators seem to all be really showing their age in all it s forms as well as balding and becoming obese? My exceptionally good health makes little sense to me yet I believe it must be mostly attributed to good genetics and self care to some extent, any insight here? By the way I am sober now, 7 years, 4 months, and 25 days today. Charles Grommes La Roche in Santa Barbara, California (Sobriety date 1/21/15) one day at a time!