I've read you need to smoke 5 a day to form and maintain a physical addiction which is why it might have been so easy. https://www.hri.global/files/2011/07/13/

I've read you need to smoke 5 a day to form and maintain a physical addiction which is why it might have been so easy. https://www.hri.global/files/2011/07/13/Benowitz_-_Nicotine_Regulation.pdf https://www.hri.global/files/2011/07/13/Benowitz_-_Nicotine_...