After several days one will notice that the breathing becomes fresh and easy. The fact is that tar contained in tobacco smoke clogs and irritates bronchial tubes. After cleansing of bronchi the breathing becomes easier and energy levels increase. Furthermore, the complexion will improve; hair and skin will get rid of the smell of tobacco.
After half a year lungs function will improve, since they will be cleared from accumulated wastes of tobacco smoke. Any smoker’s signs such as cough, wheeze, or shallow breathing or disappear shortness of breath while walking will disappear.
In addition, there will be rehabilitation of the cardiovascular system that will impact not only on the internal state of the body but also on the mental clarity and memory. Sleep will be normalized and even appearance will lose the imprint of nicotine addiction with time.
As researches show after several years of healthy non-smoking life, risks of diseases such as heart attack, lung cancer, will be almost the same as for those who never smoked. These odds increase as times goes by.
In general the consequences of quit smoking is a highly individual and depend on physical health, experience of the smoker, his age and mental attitude. In reality, after quitting smoking a person will get benefits at any age.