Quest Vitamins LTD,
Smoking is considered a health hazard because tobacco contains nicotine - a poisonous alkaloid - and other harmful substances such as carbon monoxide, acrolein, ammonia, prussic acid, and a number of aldehydes and tars. Tar, nicotine and carbon monoxide are three particularly dangerous components; tar is a carcinogen, nicotine affects the nervous system, and carbon monoxide is a poisonous gas that interferes with the transport of oxygen by the blood.
Smoking most often causes Emphysema and Bronchitis, and complicates many other conditions including Arteriosclerosis, Asthma, cancer, Diabetes Mellitus, Heartburn, indigestion, Sinusitis, and Stroke. Smoking is also associated with a higher incidence of Atherosclerosis.
Tobacco smoke of any form is a personal and environmental pollutant. It contributes to passive smoking, when a nonsmoker must inhale the smoke of others.
1. Levin ED, et al: Clinical trials using ascorbic acid aerosol to aid smoking cessation, Drug Alcohol Depend, 33(3), Oct 1993, p 211-223.