Researchers at Portugal's Champalimaud Foundation said Friday that the molecule of serotonin in the organism can diminish sensitivity to pain. 'The effect of the liberation of serotonin was clear. The rats we stimulated with serotonin revealed a significative decrease in sensibility to pain when we compared them to the rats in the control group' Xinhua quoted Guillaume Dugue one of the researchers as saying in a press release. The results found by the scientists led by Champalimaud Foundation Neuroscience Programme Director Zachary Mainen were published in the scientific magazine Plos One Friday. 'There is still yet a lot of work
