Abstract: The object of the present invention is to provide a system and method to enable a person wishing to quit smoking to carry with him a smoking cessation device that will assist the user in behavior modification, and in particular curbing and dealing with nicotine cravings. The current invention makes use of widely available and familiar infrastructure of hand held devices such as cellular phones and cellular networks. Other mobile devices having digital displays may also be used such as mobile touchscreens (i.e. Ipad, Kindle, etc.) digital music players such as the iPod and other similar devices. Smoking cessation and craving reduction are achieved through coordinated messaging reinforcement coupled with craving reduction training including controlled deep breathing exercises prompted by the device.