Toenails reveal lung cancer: indicate the levels of nicotine

Our body provides us with hundreds of lights to control the operation of the whole organism. You just need to know where to look, but science is refining the view. So, look at what conditions are the nails of the foot provides good opportunities to know if you can develop lung cancer. Beyond the aesthetic, of course, researchers at the University of California, headed by Professor Wael Al-Delaimy, carried out a search - then published in the American Journal of Epidemiology - recognizing the lights in the nails to control levels nicotine in the blood, so that they can predict whether a tumor will grow.