selected cuts & bits

Emotional states or moods are produced by the various neuropeptide ligands, and what we experience as an emotion or a feeling is also a mechanism for activating a particular neuronal circuit—simultaneously throughout the brain and body—which generates a behavior involving the whole creature, with all the necessary physiological changes that behavior would require.

Source: Molecules of Emotion: The Science Behind Mind-Body Medicine by Candace B. Pert | link