We hear about neuromodulators like serotonin all the time, but how do they actually work? This week Dr. Claire O’Callaghan gives us an introduction to the science of neurobiology! She discusses the roles of serotonin and noradrenaline and we learn that the systems are more complex than we may hear in popular science. Ava and Beth discuss their misconceptions around neuromodulators and Beth shares a personal noradrenaline story!