Find out the amazing ways your body heals after you quit smoking. Reviewed 12/8/2023 Sources Centers for Disease Control and Prevention. "Health Effects of Cigarette Smoking." https://www.cdc.gov/tobacco/data_statistics/fact_sheets/health_effects/effects_cig_smoking/index.htm. CHEST Foundation. "Chronic Obstructive Pulmonary Disease (COPD)." https://foundation.chestnet.org/lung-health-a-z/chronic-obstructive-pulmonary-disease-copd/#living. Related stories