Does summer mean parties, heavy coolers, and plenty of pitchers on your
favorite restaurant patio? First you may want to recall how your personality
morphs after a few drinks too many.
WebMD talked to the experts to find out what's to blame for booze-related
personality and behavioral changes, and whether it's possible to tame that
other -- sometimes ugly -- persona that has a habit of rearing its head shortly
after the drinks start flowing.
By Mehmet C. Oz, M.D.
Because your body thinks you're about to starve. Thousands of years ago,
hunger was a caveman's primary source of anxiety. When food became scarce, his
body coped with the resultant stress by releasing steroids, which were absorbed
by his omentum — a fat reservoir that hangs like an apron over the stomach —
and promoting fat storage. And since your body doesn't know the difference
between a demanding boss and a depleted herd of mastodons, your omentum will do
For many people, alcohol creates an overall sense of happiness and
camaraderie. But in others it has the opposite effect.
For some, "alcohol is like fueling a fire," says Dominic Parrot, PhD,
assistant psychology professor at Georgia State University.
This reaction is not an inevitable reaction to alcohol consumption, experts
believe. "Lots of people drink a lot, but not a lot of people become angry and
aggressive," Parrot tells WebMD.
Parrot recently conducted a study to examine just who is at risk for
starting a bar brawl. Here's what he found: "People who possess
aggression-promoting personality traits are the most susceptible to alcohol's
effects on aggression." In other words, if you tend to be a hothead when sober,
alcohol will ratchet up the likelihood that you'll want to punch the first guy
who smiles at your date.
Why does alcohol trigger an aggressive response in someone who ordinarily
can squelch aggressive tendencies? "We believe alcohol disrupts cognitive
functioning, making us unable to look at different problem-solving options,"
When Drinkers Get Depressed
While most people report increasing feelings of friendliness when they
consume alcohol, a small percentage -- 2%, according to one national survey --
wind up crying into their drinks while everyone around them is dancing on
Why does alcohol, reported by many drinkers as a way to unwind and relieve
stress, have just the opposite effect in others? No one knows for sure, but
researchers do know that for some people, drinking increases responses to
stress, sometimes manifesting as tears flowing into beer. Although the evidence
is inconclusive, some scientists suggest that this depressive effect may mean a
greater susceptibility to problem drinking. For others, the explanation may be
simpler: the loss of inhibitions that comes after a few drinks may simply
release the drinker's pent-up feelings.