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Cigarette smoking, responsible for over 8 million annual deaths, is linked to various lung diseases, with lung cancer being the second most common globally. Lungs, vital for oxygen supply and carbon dioxide elimination, face severe damage from smoking. The intricate structure of airways, including goblet cells and cilia, maintains lung health. Smoking leads to conditions like chronic bronchitis, as tar in cigarettes stimulates excessive mucus production and damages cilia, impairing the removal of mucus and increasing infection risk. Chronic inflammation may result in COPD, impacting breathing. Emphysema, caused by damaged lung tissue, reduces gas exchange and lung function.

Lung cancer risk rises due to the 7,000 chemicals in tobacco smoke, including carcinogens like benzene and formaldehyde, causing DNA damage and mutations. Chronic inflammation further supports cancer development. The video emphasizes that while smoking harms the lungs significantly, quitting and proper care can reverse damage. Links for lung detoxification are provided, and viewer support on Patreon is encouraged.