
A recent study conducted at the National Institute of South Korea warned about the dangers of smoking for health, suggesting that recovery from its serious harms may take up to 20 years after a person stops smoking.
According to this study, published in the scientific journal 'JAMA Open', more than 5.3 million smokers were recorded based on data from the Korean national medical insurance, who smoked an average of 20 cigarettes a day for a total of 8 years.
The researchers particularly noted that for smokers who quit early, the risks of cardiovascular diseases decrease relatively quickly, becoming practically identical to those who have never smoked within 5-10 years after quitting all kinds of smoking methods.
Researchers tracked these smokers over an average of 4.2 years, observing the development of heart and vascular diseases, such as heart attacks, strokes, and heart failure, accurately recording each participant's smoking history. It was noted that they not only monitored their current condition but also the number of cigarettes smoked, as well as when they quit smoking.