Neurotransmitter synthesis is the process by which neurons produce chemical messengers called neurotransmitters. These molecules are essential for communication between nerve cells and play a crucial role in regulating various functions in the body, including mood, sleep, and movement. The synthesis typically occurs in the neuron’s cell body or axon terminals, where precursor molecules are converted into active neurotransmitters through enzymatic reactions. Different types of neurotransmitters, such as serotonin, dopamine, and acetylcholine, are synthesized from specific precursors. For example, serotonin is derived from the amino acid tryptophan, while dopamine comes from tyrosine. Once synthesized, neurotransmitters are stored in vesicles until they are released into the synaptic cleft to transmit signals to other neurons.