I quit smoking in 1992 with the help of a doctor prescribed patch. In 2002 I developed COPD and still have it to this day.My weight gain was out of site reaching 363 pounds and I was confined to staying at home. I saw an ad for a disposable e-cigarette on face book and found it locally and tried it to see if it would affect my COPD, It did not and while using it I noticed that I was loosing weight and not eating everything in site like before. I used the disposable for about 6 months but switched to the battery tank method . I have lost 138 pounds in a year and believe that the e-cigarette helped a great deal in doing that. I am now very active working around the farm and mowing the yard with a walk behind mower.I went smoke free to loose weight and it worked and it gave me my life back .