I am a 60 yr old woman who started smoking at 12 yrs old. Was always a 2 pack a day smoker, more on weekends. Tried the patches, prescriptions, etc and the most it ever lasted was a week. Was diagnosed with COPD and Emphysema many years ago and had been on 2 daily inhalers for many years. In Sept 2013, I started to use the e-cig and it took 3 weeks of doing both until I totally stopped cigarettes. Next month it will be one year of not one cigarette! But the best part besides my clothes, car and house no longer smell is that my lung specialist has taken me off one inhaler, said my chest x-ray showed my lungs look really good and said he doesn’t want to see me for a year and the 2nd inhaler will also be stopped! I started with the 26 mg fluid that was as close to my brand as I could get, but probably won’t change that because sadly, I enjoyed smoking and if nicotine is the only thing I’m addicted to, that’s ok!