Your risk of lung cancer decreases
According to the U.S. Food and Drug Administration, smoking is the cause of more than 80% of lung cancer deaths. The agency also found that cigarettes contain more than 70 harmful cancer-causing chemicals. When you stop smoking, your chances of getting lung cancer goes down.
“Your risk for lung cancer goes down after you quit smoking, but it takes almost 15 years,” said Sethi. “Even then, it never goes back to that of a nonsmoker, but the risk does go down.”