Light or Moderate Drinking Linked to Lower Stroke Risk in Women

THURSDAY, March 8 (HealthDay News) — Light-to-moderate alcohol
consumption might reduce stroke risk in women, new research suggests.

For the study, U.S. researchers examined data from nearly 84,000 women
who were part of the Nurses’ Health Study. The women had no evidence of
cardiovascular disease or cancer at the time of enrollment and were
followed for up to 26 years.

The women provided information about their diet, alcohol consumption,
lifestyle habits and stroke occurrences. During the follow-up, there were
2,171 cases of stroke among the women, Monik Jimenez and colleagues from
Brigham and Women’s Hospital in Boston found.

About 30 percent of the women said they never drank alcohol, 35 percent
said they were light drinkers, 37 percent said they were moderate
drinkers, and 11 percent said they consumed more than the equivalent of
one mixed drink per day.

Light drinking meant consuming less alcohol than what would be found in
half a glass of wine daily, while moderate drinking meant an average of
one-half to just over one glass of wine, one beer or one mixed drink
daily, the study authors noted.

Women who were light or moderate drinkers had a lower risk of stroke
than those who never drank, but this wasn’t the case with higher levels of
alcohol consumption, according to the study published online March 8 in
the journal Stroke.

There are a number of ways that low-to-moderate alcohol consumption may
reduce stroke risk, the researchers said in a hospital news release.
Certain components of alcohol may prevent blood clots and cholesterol from
accumulating in the arteries, both of which can lead to stroke.

But higher levels of alcohol consumption may increase the risk of high
blood pressure and a heart rhythm disorder called atrial fibrillation,
both of which are risk factors for stroke.

While the study uncovered an association between alcohol consumption
and stroke risk in women, it did not prove a cause-and-effect
relationship.

More information

The U.S. National Institute of Neurological Disorders and Stroke has
more about stroke.

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