I smoked over a pack a day of leading cigarettes for more than 33 years. Several chest colds every summer and every winter. A close friend of ours started vaping so we tried it and it worked for us also. I have not smoked or purchased a single cigarette since February 2013. I have not been sick either. I have decreased my nic level from 24 mg down to 12 during this time. I am proud of what I have done by quit smoking cigarettes. I have used the patch and gum and chantix with no long term luck. This has worked the best by far for both of us, me with smoking and my husband with dipping copenhagen. We believe in it so much that we have opened up a vape store to help others. This really works well. We have seen many sucess stories with the e-cig since in the business. This adds years to peoples looks and there appearances when they feel better. Best thing ever.