So if smoking is so bad for you, why is it so hard to quit? Stopping smoking is difficult for several reasons:
Nicotine is Highly Addictive
Nicotine stimulates pleasure centers in the brain and is highly addictive. When nicotine is discontinued, the smoker will experience physical withdrawal symptoms, making the person want to start smoking again to stop the withdrawal symptoms. Each person experiences withdrawal from nicotine addiction a little differently.