Neuropeptides | what are?

Neuropeptides are small protein-like molecules (peptides) used by neurons to communicate with each other. They are either released into the blood where they activate receptors in the body, or released directly into the brain where they influence the activity of the brain in some way. More accurately, they are involved in a wide range of brain functions including analgesia, reward, food intake, metabolism, reproduction, social behaviors, learning and memory.

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