After smoking 1 1/2 to 2 packs of cigs a day for over 40 years, I stopped smoking on March 1, 2011. Its been over three years. I was diagnosed with sleep apnea and was put on a CPAP machine (I hated that thing). I was diagnosed with a mild case of COPD and that scared me. So with the help of vaping, I quit and over the next 6 months I gradually decreased my nicotine amount. I no longer use nicotine but I enjoy vaping. I donated that CPAP machine, good riddance. I thought I would stop vaping but I enjoy it still.