Nicotine is a highly addictive substance that activates reward pathways in the brain. It releases dopamine and norepinephrine, which create short bursts of focus and calm. Over time, your brain adjusts to these artificial spikes, and you develop tolerance, dependence, and intense cravings.
Because cigarettes are legal, accessible, and often used in times of stress or boredom, quitting is about more than willpower. It requires addressing your environment, triggers, emotional regulation, and habits. That’s why rehab programs for smoking often include addiction therapy and holistic care: to treat both the physical and emotional reasons people keep smoking.