The first video of the video series defines the smoking addiction from a rather scientific point of view. Because you should not be bored with academic discussion a simple and reliable definition is provided: One who (regularly) smokes is addicted. And smoking is a severe addiction that causes serious damages to your physical, mental and social health from the first cigarette on.
Because everyone is the architect of his or her own fortune you are responsible for being addicted or overcome your addiction. However, to understand the smoking addiction and its physiological and mental causes you should understand the concept of the addictive memory that pressures smokers to relapse when they experience a lack of nicotine in their biological system and/or perceive situations or mental states that they learn to associate with smoking during their smoking career.
Even though the addictive memory is at least in parts irreversible the video concludes with an outlook on the approaches to sustainably give up cigarettes.