Clue To Nicotine Dependence In Skin Color
Higher concentrations of melanin the color pigment in skin and hair may be placing darker pigmented smokers at increased susceptibility to nicotine dependence and tobaccorelated carcinogens than lighter skinned smokers, according to scientists.
“We have found that the concentration of melanin is directly related to the number of cigarettes smoked daily, levels of nicotine [...]