I started smoking at 15,I am now 51. I had tried patches,nicotine gum and nicotine lozenges to quit. My Grandfather died of emphysema. I have been completely smoke free for 2.4 years,using an electronic cigarette. I was 49 sitting in my easy chair gasping for breath. I would have episodes where I would breathe in and go into a severe coughing fit,it felt like I was choking and could not get my breath. I said you might as well take your pistol and end it now,it will be a lot faster. I decided to give the Blu cig a chance. I used the Blu and after a week was off Cigs. After 2 months using the Blu,I was having battery problems,not able to get the cartridges and just not being dependable,I stepped up to the bigger Ego Battery and the tank-carto system. I now use a Vamo. My health is much improved. I have not had one choking,or coughing fit. I go to the gym 4-5 days a week. At first I could not swim,from one end of the pool,to the other,without being winded. I now do 8 laps,that is 8 down and 8 back without stopping. I also do other exercises for about an hour,non stop. I feel better than I have in years. I can smell again,taste again and my libido has increased. I use 18mg nicotine juice,at a 50/50 VG-PG mix. I do not plan to give up the nicotine,as I have Crones disease and anyone who has Crones,or Colitis will tell you nicotine helps in the control,of the attacks. 2.4 years!!! No the changes did not happen over night. Yes it took some self control and unlike most Ex-smokers,I love the smell. I smell someone smoking and say oh baby,BUT I can sit in a room full of smokers and not take a drag. I do not plan to go back down that road. Some people say,you are still smoking,nope I am Vaping and I know how my body feels,how my lungs feel. I will let the doctors do their research,but I know if I had kept smoking I would be dead. The E-cig has given me a second chance.