cancer causing agent in cigarettes Carcinogenic mechanisms of smoking lung cancer. Abbreviations: PAHs, Vaping, Environmental Toxicants Exposure, and

Vaping, Environmental Toxicants Exposure, and Lung Cancer Risk Vaping Harmless. Vape aerosol contains toxic chemicals like formaldehyde, arsenic, lead, chromium, and nickel. They damage lungs. They harm developing brains. They raise cancer risks. We Cigarette smoke contains thousands of chemicals, many of which are toxic and harmful to the human body. Here's a detailed breakdown of some of the most dangerous constituents and their effects: 1. The harmful chemicals in smoking directly damage lung cells, causing DNA mutations that increase cancer risk. Over time, these damaged cells grow abnormally, leading to tumor formation in the lungs. Quitting smoking

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