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 In moderation, alcohol consumption has been linked to improved
quality of life and a lower risk of health problems like heart
disease and certain cancers in some previous research, leading
doctors to advise some patients to imbibe occasionally as part of a
healthy diet, researchers note in CMAJ. But results have been mixed,
and research to date hasn't offered a clear picture of whether
moderate drinking - up to 17 drinks a week for men and 7 for women -
is more harmful or helpful when it comes to physical and mental
health.
For the current study, researchers examined data on 10,386 adults in
Hong Kong who were nondrinkers or moderate drinkers. Participants
were 49 years old on average when they joined the study; 64% of men
and 88% of women were nondrinkers.
Researchers followed half of the participants for at least 2.3
years. During the study, about 40% of the male drinkers and 62% of
the female drinkers quit drinking.
Women who stopped drinking during the study had bigger gains in
wellbeing than women who were nondrinkers at the start. Men who had
the biggest gains in wellbeing were former drinkers when they joined
the study.
"Our study provides more evidence suggesting caution in recommending
moderate drinking as part of a healthy diet," said lead study author
Xiaoxin Yao of the University of Hong Kong.
"It is possible that alcohol cessation may reduce stressful life
events, such as conflict within family, difficulties in employment
and legal troubles, resulting in improved mental well-being," Yao
said by email. "It is also possible that improved mental well-being
may result from the psychological benefits of `giving up' than an
effect of alcohol cessation per se."
To verify the link between cessation and wellbeing, researchers also
looked at data from a nationally representative survey of 31,079
American adults.
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For women who were moderate drinkers, quitting was associated with
favorable changes in wellbeing in both Hong Kong and the U.S.
The study wasn't a controlled experiment designed to prove whether
or how stopping drinking might directly improve health. Another
drawback is the potential for people to stop drinking or be lifelong
abstainers because of health issues that make them sicker or less
content than people who do drink.
While clinical guidelines in the U.S. and Canada are careful to
avoid recommending that patients start drinking alcohol as a way to
become healthier, it's not uncommon for doctors to make this
suggestion to patients, said Dr. Tim Stockwell, director of the
Canadian Institute for Substance Use Research at the University of
Victoria.
"The belief in these medicinal properties of alcohol is widespread,"
Stockwell, who wasn't involved in the study, said by email.
"It is not unknown for cardiologists to recommend people actually
take up drinking to improve heart health," Stockwell noted.
While one or two drinks a week carries very little risk, there are
other things people should try if their goal is to improve wellbeing
and quality of life, Stockwell added. These include improving diet
and exercise habits, reducing stress, getting more sleep, and
maintaining positive relationships.
SOURCE: http://bit.ly/2JJvtnd CMAJ, online July 8, 2019.
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