While not a novel idea, new research suggests that drinking even as little as a sip of beer can trigger a feeling of happiness.
[F]or some people, intoxication isn’t necessary: Simply the taste of beer alone can provoke a release of the neurotransmitter within minutes. ...
A group of researchers led by David Kareken of Indiana University came to the finding, published today in the journal Neuropsychopharmacology, by giving tiny amounts of beer to 49 adult men and tracking changes in their brain chemistry with a positron emission tomography (PET) scanner, which measures levels of various molecules in the brain. ...
The effect was significant. When the men tasted the beer, their brains released much higher levels of dopamine within minutes, compared to when the same test was conducted on the subjects at other times with both water and Gatorade. They were also asked to rate how much they “craved” a beer at several points during the experiment, and perhaps less surprisingly, their cravings were generally much higher after tasting beer than Gatorade or water.