Brain dopamine refers to a chemical messenger in our brain that helps us experience pleasure and motivation. It is responsible for feelings of happiness, reward, and satisfaction. Full definition
The role of stress also appears to be supported by the current findings on brain dopamine levels. (sciencedaily.com)
Theanine also increases brain dopamine levels and has a low affinity for AMPA, kainate, and NMDA receptors.» (thecrossovertrainer.com)
They hypothesized that excess brain dopamine release in heavy alcohol users who also use nicotine / smoke could make them more treatment - resistant in general, but more sensitized to naltrexone's dopamine lowering effects — leading to their greater response to treatment with the medication than non-smokers. (sciencedaily.com)