Eau de sweat

Denise Chen of Rice University and her colleagues have used function magnetic resonance imaging (fMRI) to investigate how the female brain responds to the chemical signals encoded in male sweat. The results of the experiment indicated the brain recognizes chemosensory communication, including human sexual sweat. The research showed that several parts of the brain are involved in processing the emotional value of the olfactory information. These include the right fusiform region, the right orbitofrontal cortex and the right hypothalamus. The study helps expand our understanding of how the human sense of smell complements our other senses, but does not confirm or refute the products offered in those pheromone-touting emails.