Can Stopping Smoking Affect Your Breathing?

Carbon monoxide gradually leaves the bloodstream, which helps to alleviate symptoms like shortness of breath. Smoking also inflames the lining of the airways, but when you quit, you no longer inhale all the toxic substances that irritate the airways, which allows them to begin healing.

Can quitting smoking cause shortness of breath?

You heart rate will begin to drop to normal levels within 20 minutes of your last cigarette. 8 to 12 hours after quitting, you blood carbon monoxide level drops. Carbon monoxide is the same dangerous fume that comes from car exhaust. It causes your heart rate to increase and causes shortness of breath.

Is shortness of breath a side effect of nicotine withdrawal?

Within one to nine months, coughing and shortness of breath also decrease. People experience nicotine withdrawal differently. Some people find it more challenging than others. Many people find nicotine withdrawal is worst in the first 24 - 48 hours of quitting.