Smoking: The Damage

The video explains the harmful effects of smoking on the lungs, including the components of cigarette smoke, such as tar and gases, and their impact on lung health. It describes how smoking damages the lungs, leading to diseases like bronchitis, emphysema, and lung cancer. The video emphasizes the importance of quitting smoking to prevent these health issues.

How does smoking contribute to lung cancer according to the text?

What is the most important treatment for smoking-related diseases?