Discover the 7,000+ chemicals in cigarette smoke, including 70 carcinogens. Learn about hidden additives, dangerous combustion byproducts like formaldehyde and tar, and why 'natural' cigarettes aren't safer.
Science-backed analysis of smoking's long-term effects after 20+ years. Learn how cigarettes destroy lungs, heart, finances, and relationships, with quitting timelines and irreversible damage risks.
Learn to accurately calculate pack years with our step-by-step formula, real-life examples, and health implications. Discover how pack years affect lung cancer screening eligibility and long-term risks.