The human brain is a complex system of cells and chemical messengers that regulate a variety of physiological and psychological processes. Among these, serotonin, a neurotransmitter, plays a crucial role in modulating mood, cognition, memory, learning, addiction, anxiety, depression, psychosis, and epilepsy. Dysregulation of serotonin signaling has been linked to a range of neuropsychiatric disorders. However, recent advancements in neuroscience have shed light on the potential of targeting specific serotonin receptors to treat these conditions.