Genetics, but not particularly uncommon genetics. I know so many people who smoked perpetually, drank hard, ate like birds, and lived in full physical health u

Genetics, but not particularly uncommon genetics. I know so many people who smoked perpetually, drank hard, ate like birds, and lived in full physical health until their late 90s. Look at the Italians! The Japanese! If I enjoyed smoking and drinking, I'd invest in that nutrition plan long before taking a stab at whatever the "scientists" and "nutritionists" are whoring out at the moment.