2 months cigarette free days smoke ! Feeling eager to become healthier. Spent 25 years smoking Two Years Without Smoking Cigarette
Description
It does not mean physical harm is coming

Additional file 3)

For an average cigarette with 6 mg of tar and the average Beijing pollution of 90 g/m3 with 20 m3 inhaled per day, the relationship comes back to 0.3 cigarette/day as a yearly average

Nobody wants that