Why smoking addiction? Smoking addiction, also known as tobacco addiction, namely tobacco dependence refers to a mental and physical pathological condition in the course of repeated use of tobacco, nicotine cigarettes online in tobacco body and formed the interaction. For long-term heavy smokers, nicotine is inhaled euphoria without smokers is just the opposite, a very unpleasant psychological experience. Pharmacologist believes that the above-mentioned tolerance mainly from pharmacodynamic principles nicotine.Newport cigarettes online sale,free shipping. Nicotine also known as nicotine, tobacco alkaloids in the main, as a colorless transparent oily volatile liquid with stimulating smell of smoke. When the first cigarette, nicotine will be with the blood into the central nervous system, into the brain of nicotine and acetylcholine have very specific binding force. With continued smoking, nicotine and acetylcholine receptors more and more, resulting in some receptors sensitive to nicotine no longer. At this time the body will produce more specialized compensatory combination with nicotine acetylcholine receptors to accommodate this change. So smokers to achieve the same comfort as cheap cigarettes before, it will need more nicotine binding to its receptor, which is why smoking will be more big reason.I found a website that have cigarettes for sale. Once the nicotine content of the cheapusacigs.com body suddenly reduced, so that the brain's acetylcholine receptor can not be combined with nicotine, this time will produce a series of physiological and psychological reactions, such as irritability, headache, dizziness, lack of concentration, etc., and have a strong smoking craving, which is craving.Marlboro cigarettes for sale,best discount! marlboro cigarettes Nicotine is the main addictive original. Inhalation of cigarette smoke nicotine in just 7 to 10 seconds to reach the central nervous system with the blood, can play after the first excitement frontal cortex inhibition, which began smokers enhanced alertness, thinking becomes "YTDFSGFGCUEYFA" agile, feel cozy, psychological Su Fang, it seems also to reduce fatigue, so that smokers feel a gentle pleasant even stoned feeling. But once the blood nicotine levels drop, then you will feel upset, dizziness, fatigue, slow thinking, difficulty concentrating and a general malaise, even panic, there is always a strong urge to smoke. Because after nicotine into the body, soon to be metabolized and eliminated, can not be stored in the body, so smokers must continue smoking, to maintain a relatively steady blood nicotine.