What happens when tobacco smokes is inhaled into the pespiratory system?

When tobacco smoke is inhaled into the respiratory system, it introduces a complex mixture of harmful chemicals, including tar, nicotine, and various carcinogens. These substances irritate the airways and can lead to inflammation, reduced lung function, and increased mucus production. Over time, chronic exposure can cause serious conditions such as chronic obstructive pulmonary disease (COPD) and lung cancer. Additionally, nicotine addiction can lead to continued smoking behavior, further exacerbating health risks.