Smoking is the act of inhaling and exhaling the smoke produced by burning tobacco, often found in products like cigarettes, cigars, and pipes. Many people smoke for various reasons, including relaxation, socializing, or habit. However, smoking is known to be harmful to health, leading to serious diseases such as lung cancer and heart disease. The smoke contains thousands of chemicals, many of which are toxic and can damage the body. Additionally, secondhand smoke can affect non-smokers, especially children and pregnant women. Quitting smoking can greatly improve health and reduce the risk of disease, making it a vital step for many individuals.