I smoked for 35 years. I have used electronic vaporizers since 2008. Have not smoked tobacco since switching to vaporizers. When making the switch, I continued to smoke less and less for three days and have not smoked since. Tried the nic gum before that which did not work at all. My health, tastes and sense of smell has improved dramatically. My outlook on life has also improved. Thank You for listening to my report.