Which neurotransmitter is known to inhibit pain pathways in the brain?

Endorphins are peptide neurotransmitters that play a significant role in the modulation of pain. They are produced by the body and bind to specific opioid receptors in the brain, leading to analgesic effects. This action helps reduce the perception of pain, making endorphins crucial for the body's pain control mechanisms. In times of stress or injury, endorphin levels can increase, resulting in a natural "high" and a reduction in pain sensation, often referred to as the body's way of responding to pain or distress.

While dopamine, serotonin, and GABA have important roles in the nervous system, they do not primarily function to inhibit pain pathways in the same direct manner as endorphins. Dopamine is more associated with rewards and motivation, serotonin often influences mood and well-being, and GABA primarily serves as an inhibitory neurotransmitter, helping to reduce neuronal excitability and contribute to a calming effect, but not specifically targeting pain pathways like endorphins do.