One of the best things about quitting smoking is how quickly your lungs and breathing start to improve. Even if you’ve smoked for years, your body begins to heal just hours after your last cigarette. In this post, we’ll explore the incredible ways quitting smoking improves your lung health and breathing—whether you’re just starting or already smoke-free.

Related reading: How Your Lungs Heal After You Quit Smoking: A Science-Based Timeline · How Quitting Smoking Improves Your Lungs and Breathing Over Time · Can Your Lungs Recover From Smoking? The Honest, Science-Backed Answer · What Happens to Your Lungs After 10 Years of Smoking? · Your Lungs After Quitting Smoking — What They Look Like at 1 Year, 5 Years, and 10 Years. · This Is What Happens to Your Lungs in the First Year After You Quit Smoking. · Can Blackened Lungs Turn Pink Again After Quitting?