Actually, if a person quit smoking he feels uncomfortable because of the body's response to nicotine dependence. All of these consequences are the result of accumulated toxins from smoking. Coming into the body, nicotine gradually begins to participate in metabolism process.
Contaminants are gathered in lungs and bronchus and, as well, nicotine decomposition products are accumulated in the liver. When a person quits smoking his body begins to get rid from the harmful ballast, throwing out all the toxins and wastes in the intestines.
The first time after quitting smoking a person may suffer from cough, chest pain or a weakness. This is due to the restructuring of the body and the removing of contaminants which tobacco contains. The body rejects resins and other wastes, which have been accumulated in the lungs for years.
The first noticeable improvements occur within 8 hours, as the blood is saturated with the needed level of oxygen for 8 hours and heartbeat and blood pressure will return to normal.
After 24 hour all carbon monoxide from tobacco smoke will have been removed from the body and lungs will begin to clear out mucus and residual debris that has accumulated from the inhalation of tobacco smoke.