Nicotine is a substance that is released when a person smokes. It turns out the time taken by the nicotine to go from the lungs to the brain only for 7 seconds.
One of the most widely abused drug use is nicotine, which can come from smoking or chewing tobacco. Besides nicotine also includes one of the most addictive substances compared with other drugs.
As quoted by BBC News, traveling nicotine from the lungs to the brain fairly quickly at only 7 seconds. After reaching the brain nicotine stimulates the release of dopamine, which is an important neurotransmitter involved in mood (mood), appetite and other brain functions.
When a person smokes, the nicotine will come in and begin to accumulate in the body. Eventually someone will get used to the nicotine and if he does not get the same amount then the body will ask for more. And usually the amount of nicotine that will enter the greater or increased.
Users can quickly become nicotine dependence, because it takes only a few cigarettes to be able to make one's own addiction. If a person suddenly stops smoking, then he will have the effect of reversal (withdrawal effect) such as anxiety and mood swings.
One of the things that can not be denied is the nicotine addiction usually begins in a person to dabble or experiment with cigarettes for a year. In many cases this condition sometimes been started since someone still in school or 13-14 years old.
As a pure drug, nicotine has few adverse effects on one's physical health. But other chemical substances contained in cigarettes and join the nicotine is what can cause a lot of damage to the body. Because when burned and smoked a cigarette, then there are hundreds of chemical compounds produced and great risk to health.