Is this peptide a key to happiness? Findings suggests possible new treatment for depression, other disorders

For the first time in humans, scientists have measured the release of a specific peptide, that greatly increased when subjects were happy, but decreased when they were sad. The findings have implications for the treatment of depression.

URL: http://feeds.sciencedaily.com/~r/sciencedaily/mind_brain/depression/~3/7R94Tidwd4c/130307145720.htm