addition
understanding the myth
smoking is not just a bad habit, but a complex addiction. experts believe that nicotine exerts its powerful addictive effects by altering two chemicals in the brain - dopamine and noradrenaline - known as neurotransmitters. within seven seconds of inhaling, a concentrated dose of nicotine is delivered directly to the brain, producing a nicotine "rush". many smokers interpret this rush as one of pleasure, but in reality the pleasure is misunderstood. it only appears pleasurable because it satisfies the craving created by the last cigarette. over time the smoker has become victim to the classic cycle of addiction.
the addictive cycle
if this is hard to believe, think back to the first few cigarettes you smoked. most smokers will admit that these were anything but pleasurable. in fact, you probably had to persist until the addictive cycle had taken hold before smoking gave you any kind of "pleasure". what smokers perceive as pleasure is, in reality, simply the relief of satisfying a craving for nicotine. after smoking a cigarette, withdrawal can set in as quickly as 15 minutes later.
breaking the addiction
don't be too alarmed though! despite its addictive nature, nicotine doesn't资源难易程度:★★★★★★★★★★★★★★★
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