Smoking Essay Example | Topics and Well Written Essays - 750 words

Smoking - Essay Example (Sloan 222). The lung is able to filter some of the beneficial substances in cigarettes though harmful chemicals leak into the lungs. Tar causes damage to airways of lungs and this could lead to unusual multiplication of cells in the lungs. As one continues to expose lungs to smoking, lungs experience irreversible changes in the cells. This specifically affects nucleus of the cells hence uncontrolled cell growth of cells in the lungs. Every puff smoke inhaled by a smoker either of tobacco or cigarette deposits tar that coats the lungs and may cause difficulty in breathing since there is no exchange of clean air from the atmosphere to lungs and vice-versa. Mouth cancer, also referred to as oral cancer cannot be evaded by smokers. People have been made to believe that smoking using cigars and pipes leaves less tobacco in the system. However, this is untrue since cigar and pipe smokers are at high risks of mouth cancer. The pipe-stem rests on the lip and exposes users to another great risk of lip cancer. Continued smoking or tobacco use is said to be the major cause of mouth cancer. Smoking causes irritation on the mouth surface. Burning of tobacco and its by-products is the base line of this irritation after interacting with mouth membrane. Moreover, cigars and pipes take some considerable time to burn and thus expose user to secondary smoke. Smoking could also lead to loss of teeth and other teeth illnesses. Smoking has a direct effect on the way the body responds to exercise. Exercise requires oxygen in the body. Smoking brings carbon monoxide in the body which reduces the level of oxygen in the body. As a result, there is increased heart beat since less oxygen is absorbed into the bloodstream (Owing 166). The heart is overworked in an attempt to get more oxygen since carbon monoxide stops supply of oxygen. Thus, smokers have poor body fitness since the body cannot respond to any vigorous activity. Smoking