FRIDAY, Aug. 30 (HealthDay News) -- In the same way that a
little wine may be good for the heart, it might also help avoid
depression, a Spanish study suggests.
So while drinking a lot of wine or other alcohol may be a sign
of depression or other mental health problems, alcohol in
moderation may benefit mental health, the study authors
"One drink a day, preferentially wine, may help prevent depression," said lead researcher Dr. Miguel Martinez-Gonzalez, chair of the department of preventive medicine and public health at the University of Navarra, in Pamplona.
But several mental health experts not involved with the study
had reservations about the findings. And the research only found an
association between moderate drinking and emotional well-being; it
didn't prove cause-and-effect.
Martinez-Gonzalez said he thinks the apparent benefit of wine in
preventing depression may work the same way that moderate drinking
helps prevent heart disease.
"Depression and heart disease seem to share some common mechanisms because they share many similar protective factors and risk factors," he said. However, he added that depression prevention is not a reason to start drinking.
"If you are not a drinker, please don't start drinking," he said. "If you drink alcohol, please keep it in the range of one or less drinks a day and consider drinking wine instead of other alcoholic beverages."
The report was published Aug. 30 in the online journal
Tony Tang, an adjunct psychology professor at Northwestern
University, in Evanston, Ill., said the new research "is consistent
with other studies suggesting modest health benefits of very modest
But, Tang said other factors may be at work in the potential
connection between wine and depression. He noted that compared to
nondrinkers, those in the Spanish study who drank a moderate amount
of wine were more likely to be married men who were also physically
Being single or divorced, living alone and being sedentary "are
well-established risk factors of depression. Thus, perhaps the
correlation between modest drinking and depression is a coincidence
caused by these other known factors," he said.
"An adequate social life is the most important factor we know that protects people from depression," Tang said. "Perhaps not drinking is a sign of serious social isolation in Spain while drinking a glass of wine a day is simply a sign of having a normal social life."
For the study, researchers followed more than 5,500
light-to-moderate drinkers for up to seven years. All the
participants were part of a large Spanish study on nutrition and
cardiovascular health, and were between 55 and 80 years old.
None of the individuals had suffered from depression or had
alcohol-related problems at the start of the study. Over seven
years, with medical exams, interviews with dietitians and
questionnaires, the researchers kept tabs on participants' mental
health and lifestyle.
Wine was the most popular drink and participants who drank two
to seven glasses a week were the least likely to suffer from
depression, compared to nondrinkers.
These findings remained significant even after the researchers
took factors such as smoking, diet and marriage into account.
Eva Redei, a distinguished professor in the department of
psychiatry and behavioral sciences at the Feinberg School of
Medicine at Northwestern University, in Chicago, also expressed
doubts about the direct effect of wine on depression.
"Considering the increase of major depression in the age group examined in this study, the finding of protective effects of moderate alcohol consumption is intriguing," she said.
However, it raises more questions than answers. "Is moderate
wine consumption related to increased socialization, decreased
cardiovascular events, or as it seems, increased activity? These
questions are not answered by this study, but the findings are
definitely worth noticing," Redei said.
"Is it possible that 'in vino veritas' [in wine there's truth] reflects a bigger truth?" she asked.
To find out more about depression, visit the
U.S. National Institute of Mental Health.
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