SEROTONIN DOPAMINE – Our Own Happy Serotonin and dopamine are neurotransmitters that primarily affect mood and emotions, with dopamine largely associated with feelings of pleasure and reward, while serotonin contributes to feelings of well-being, calmness, and stability; both play a significant role in motivation and overall happiness. When dopamine is released in our brain, we feel a sense of temporary pleasure. Serotonin, while similar to dopamine, creates a long-lasting feeling of happiness or well-being. Both chemicals act as hormones that help coordinate different functions and processes in our bodies like growth, metabolism, emotions and even sleep!