Smoking addiction, also known as nicotine dependence, occurs when a person becomes reliant on the nicotine found in tobacco products. This addiction can develop quickly, as nicotine stimulates the brain's reward system, leading to feelings of pleasure and relaxation. Over time, individuals may find it difficult to quit due to withdrawal symptoms, cravings, and the habit of smoking itself. The health risks associated with smoking addiction are significant, including lung cancer, heart disease, and chronic obstructive pulmonary disease (COPD). Many people attempt to quit smoking through various methods, such as nicotine replacement therapy or support groups, but overcoming this addiction can be challenging due to its physical and psychological components.