after smoking cigarettes What Happens When You Stop Smoking? Timeline of Lung Recovery After

These include breathing issues, lung illnesses and injuries, and issues with brain development during the teen years

After 2 weeks to 3 months: The airways in your lungs relax and you can breathe easier

Symptoms include: Tremors Constricted pupils Drooling Auditory and visual hallucinations Excitement Vomiting and diarrhea Twitching, possibly progressing to seizures Racing heart rate but slow heart rate with small doses High blood pressure but at higher doses, there is a circulatory collapse It is easy to confuse nicotine poisoning with other poisonings such as strychnine, chocolate, organophosphate insecticides, and certain molds

Reduced fitness: Nicotine and carbon monoxide constrict blood vessels and reduce oxygen, making you feel out of breath quickly

Using NRT alone, without support, did not seem to increase the chances of quitting

Smoking remains the country's "biggest source of preventable death," accounting for 443,000 fatalities a year