Why is it hard to quit smoking?

Foremost, this is because most smokers become addicted to the nicotine contained in tobacco products. Nicotine has a deadly addictive power. When a person smokes 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 smoking because they come to be dependent on this good feeling. And, this leads to dependence – addiction.
A person who attempts to quit smoking may experience withdrawal symptoms. Topping the bill of withdrawal symptoms is depression. With the absence of the chemical that produces the relaxing feeling, the brain becomes distressed without it. Other withdrawal symptoms from smoking include:
Headaches dizziness, and nausea Shakes, chills Cough, dry throat nasal drip Hunger, fatigue Constipation, gas or stomach pain Insomnia