We find a relationship between hair color and nicotine dependence

American researchers claim that smoking habit depends on the color of hair and skin. What it is darker, the more a person is located to nicotine dependence.
American researchers from the University of Pennsylvania say that black and even dark-haired people are much easier to sit down on cigarettes than the blond. And, consequently, the disease associated with smoking, they found much more frequently and in more severe forms.
What is so special about the color of hair and skin, and why is it so affects our willpower? Doctors blame the pigment melanin, which gives a dark shade of our hair. It can be manufactured in the body naturally, or may appear after tanning. According to their research, the high level of this substance causes the person addicted to tobacco.
"We found that the concentration of melanin is directly related to the number of cigarettes that men smoked per day and the level of nicotine addiction and nicotine on the body" - quoted Medlinks study author Gary King.
According to one version, the biochemical composition of melanin is similar to the composition of nicotine. On the other hand, the pigment is able to bind with nicotine, because of what he accumulates in the body faster and longer rests in the tissues of the body. This, in turn, leads to a rapidly evolving and highly dependent, as well as more serious health consequences. So, if the blonde to "sit down", would have to smoke for a long time and regularly, dark enough to indulge - and give up cigarettes, he no longer able.
"People with more melanin prone to a certain type of use of nicotine - addiction - hence they are more likely to be encountered health problems that arise due to smoking - continues to King. - The dependence of these people may be more severe than people with fair skin.
In the course of his investigation the Americans have collected data on 150 black smokers. In the questionnaire participants indicated their normal cigarettes a day and answered questions about their degree of nicotine dependence. At the second stage, scientists measured the participants' level of substance cotinine. This product is nicotinic exchange in the body, by the presence and quantity of which is determined by nicotine addiction. Finally, these figures were compared with the level of melanin in the subjects.
However, until scientists make conclusions very carefully. The data obtained are in need of clarification and correction, we need follow-up study.
Studies conducted in different seasons and in different geographical areas, will help to eliminate the influence of seasonal factors, such as sunburn. In addition to the level of nicotine could potentially influence alcohol consumption, physical activity, diet, amount of fat tissue, the level of stress. "All these factors should be taken into account in future studies," - said King.