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Smoking tobacco has been definitively linked to heart disease, lung disease, diabetes, and cancer, among other debilitating and dangerous conditions

I just want to start by saying youre amazing

He argues that people are spending their valuable resources on something that brings no real benefit and, in fact, causes harm

Bronchial tubes begin to relax and energy levels increase After 2 to 12 weeks - Your circulation improves After 3 to 9 months - Coughs, wheezing and breathing problems improve as lung function increases by up to 10% After 1 year - Risk of heart attack falls to about half that of a smoker After 10 years - Risk of death from lung cancer falls to half that of a smoker

So I felt like I have to maximize everything. (Top photo: Jeff Chiu / Associated Press)