After a relatively short time, a smoker is often already significantly dependent on nicotine.
But smoking also shares all the effects on the body of other addictive drugs. When a smoker feels the need to smoke and feels uncomfortable, the reason is that the level of nicotine in the body has been reduced below some value. After the first puff on a new cigarette, nicotine is back in the brain within 7 seconds. So the effect of a new dose of nicotine is quickly noticeable. This way the nicotine causes physical dependence. The body wants to get the new substance over and over again.
Using advanced technology, scientists can see the dramatic nicotine effect of cigarette smoking on the brain.
What people frequently do not realize is that the cigarette is a very efficient and highly engineered drug-delivery system. Nicotine is metabolized are the liver at kidneys and lung. Women who smoke generally have earlier menopause. If women smoke cigarettes and also take oral contraceptives, they are more prone to cardiovascular and cerebrovascular diseases than are other smokers.
Pregnant women who smoke cigarettes run an increased risk of having stillborn or premature infants or infants with low birth weight. Children of women who smoked while pregnant have an increased risk for developing conduct disorders.
These side effects of Nicotine are among the most common side effects; however, this list does not include all the side effects of Nicotine.
Dental health can suffer as a result of smoking with teeth becoming stained, particularly from chewing tobacco. Nicotine is metabolised in the body via the lungs, kidneys and liver and any deposits are excreted in the urine.