Ive been trying to give up for a few years, tried patches, inhaler, lozengers, chewing gum, even hypnotherapy sessions and nothing worked. A hardened smoker of about 25 a day buys this cd puts it on at the night asleep within ten mins wakes up don't want a cig how cool is that. I have not smoked for three weeks now, the first week I felt rough but I was going cold turkey by the second week felt great, I find I am so much calmer and healthier, I have already lent it to someone else and they have had the same results. So all I can say is give it a go you might be pleasantly suprised.