There are many reasons that it is difficult to quit smoking and the severity of each of these varies with each person.
Foremost, this is because most smokers become addicted to the nicotine contained in tobacco products. Nicotine has a deadly addictive power. How? When a person puffs a cigarette, nicotine particles find their way to the lungs through inhalation. From there, nicotine is absorbed into the bloodstream just like the oxygen people breathe. It travels with the blood to the brain where it locks onto certain receptor areas. Dopamine is then released into the brain. This is the chemical that makes the smoker feel a euphoric sensation. Smokers find it difficult to quit because they come to be dependent on this good feeling. And in wanting to experience this repeatedly, this leads to dependence – a sign of addiction.
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