ith hemoglobin in red blood cells to prevent hemoglobin from being able to bind with oxygen and carry it to cells throughout the body. Smoking is related to many diseases. Lung cancer, chronic bronchitis and pulmonary emphysema are directly linked to cigarette smoking. Bladder cancer, mouth cancer, ulcers, all forms of cardiovascular disease such as high blood pressure, stroke, and coronary heart disease are more common in smokers than in non-smokers.Smokeless tobacco includes snuff and chewing tobacco. Both are made from tobacco leaves. Snuff is placed between the gums and the cheek or lip. The nicotine in smokeless tobacco is addictive. Smokeless tobacco causes the production of more saliva and users swallow some without knowing it; this then introduces tar and other chemicals into the digestive and urinary systems. Cancer of the pharynx and esophagus may result. Irritation causes leukoplakia, thickened, white, leathery spots on the inside of the mouth. This can result in cancer of the lip or mouth. Users also get tooth decay, inflammation of the gums, loss of teeth, bad breath, discolored teeth and decreased ability and taste, especially salty and sweet foods. (Lawrence, F. 1996)Drug abuse is a serious issue. Not many people are aware of how serious it is. Drug abuse is so serious because it has physical and psychological affects that are fatal. Because of the fatal results drugs can have on the body people need to educate themselves and never use drugs....