smoking and health

Smoking harms health by introducing toxic chemicals into the body, damaging the lungs, heart, and blood vessels. It increases the risk of lung cancer, respiratory diseases, and cardiovascular problems. Smoking also weakens the immune system and reduces overall life expectancy. Tar and chemicals in cigarettes cause inflammation and damage tissues, while carbon monoxide reduces oxygen delivery to organs. Quitting smoking greatly lowers these risks, improves lung function, and enhances overall well-being, making it one of the most significant steps a person can take for their health.