Smokers find it hard to give up smoking because nicotine, an addictive substance found in tobacco products, affects the brain's chemistry and creates a strong physical and psychological dependence. Nicotine activates the reward centers in the brain, causing the release of dopamine, a neurotransmitter that creates a pleasurable sensation. This reinforces the behavior of smoking leading to addiction. In addition, long-term smoking changes the brain's structure, reducing the number of dopamine receptors, making quitting even more challenging. Smokers may also experience withdrawal symptoms when attempting to quit, such as irritability, anxiety, insomnia, and strong cravings, which can be difficult to manage.
