The main reason people smoke is because smoking provides a natural herbal extract which helps to stimulate the body's biochemical processes. Unfortunately, there are also some long-term, negative effects of smoking which have been well publicized and documented. Tobacco smoking is the single most important cause of preventable premature death and suffering in the world. Not only are cigarettes bad for your long-term health, but cigarette costs are becoming increasingly expensive, and smoking is becoming increasingly unacceptable in many social places. One important finding is that when individuals change from a high strength cigarette to a lower strength cigarette, the pattern of smoking changes so as to maintain the same level of nicotine intake.
Nicotine produces stimulant effects, while large doses produce depressant effects.
This effect may differ between individuals, and between different circumstances in the same individuals. Nicotine is addictive. Tar, itself, is a very complex substance which tends to collect in the lungs, and has been clinically linked to several forms of lung cancer. Carbon monoxide enters the bloodstream, and depletes oxygen availability to the brain, thus slowing the 'thought' process, and depriving brain cells of the nutrients needed to maintain good health and normal functionality. Did you know that the mean birth weight of infants born to mothers who smoke during pregnancy is 6 oz.