How long does it take to recover from smoking?

Complete recovery from smoking depends on overall health status and the duration of smoking, and may take anywhere from several months to several years. After one or two years, the risk of cardiovascular disease drops significantly, and after ten years, the risk of lung cancer becomes much lower compared to the period of smoking. In all cases, health begins to improve immediately upon quitting smoking, because smoking increases the concentration of certain toxins in the body, such as carbon monoxide. Within a few hours of the last cigarette, the body begins to eliminate these toxins, and within about 12 hours, it clears a large portion of carbon monoxide, leading to an increase in blood oxygen levels.

Experts note that smoking damages the cilia that line the airways, whose primary function is to remove dust, mucus, and foreign particles. Within six to nine months, these cilia regain their ability to clean the lungs, which helps reduce the risk of infection. After about 3.5 years, inflammation gradually subsides, cilia regain their function, and lung and respiratory functions improve, along with a reduction in shortness of breath. The number of goblet cells also decreases, further contributing to a lower risk of infection.

Health benefits continue over time. After 10 years or more, the risk of lung cancer and other smoking-related diseases drops significantly compared to those who continue to smoke. Doctors emphasize that the longer a person abstains from smoking, the greater the improvement. Even if changes are slow, quitting smoking and undergoing tobacco addiction treatment always improve health. However, some damage may be irreversible; destroyed alveoli cannot be repaired, and emphysema does not disappear simply by quitting smoking.

Source: gazeta.ru