Key Difference – Serotonin vs Endorphins Serotonin and Endorphin are inhibitory neurotransmitters used by the nervous system to transmit signals from one neuron to another neuron and maintain a good connection between nerve cells. The key difference between the Serotonin and Endorphin is that Serotonin is a monoamine neurotransmitter while Endorphin is a small […]