News Brain scans reveal human pheromones By John Travis October 9, 2001 at 11:21 am - More than 2 years ago Share this:Share Share via email (Opens in new window) Email Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Print (Opens in new window) Print More and more scientists believe that people, like insects and other animals, give off pheromones. Such scents covertly influence the behavior and physiology of other members of a species, particularly of the opposite sex (SN: 3/14/98, p. 164: http://www.sciencenews.org/sn_arc98/3_14_98/fob1.htm). A research team reports in the Aug. 30 Neuron that the brains of men and women respond differently to two putative pheromones, compounds related to the hormones testosterone and estrogen.