Serotonin is a neurotransmitter that plays a role in mood, sleep, appetite, and other functions. The podcast discusses how addiction is related to this neurochemical and addiction treatments are starting to focus on serotonin.
"Serotonin is mentioned as a key molecule in understanding mood regulation and mental well-being. A listener might want to research ways to potentially influence their own levels of serotonin in order to improve their mood or sleep."