How moderate alcohol might affect heart health

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Researchers at Massachusetts General Hospital have made an intriguing discovery about how a small to moderate amount of alcohol might protect heart health.

Their findings suggest that moderate drinking may lower the risk of heart disease by reducing stress signals in the brain.

However, they caution against using alcohol as a strategy to prevent heart problems, emphasizing the potential risks.

Dr. Ahmed Tawakol, the lead researcher and a cardiologist, explained that the study’s purpose was to understand how alcohol might influence heart health, rather than to encourage its consumption.

The ultimate goal is to find safer, non-alcoholic ways to achieve similar benefits.

For years, studies have hinted that moderate drinking—about one drink per day for women and one to two drinks for men—could lower the risk of heart disease.

Yet, it remained unclear whether this was directly due to alcohol or other factors, such as healthier lifestyles or higher socioeconomic status often associated with moderate drinkers.

To dig deeper, the team analyzed data from over 50,000 participants in the Mass General Brigham Biobank. They found that moderate drinkers had a lower incidence of heart problems, even after adjusting for other health and lifestyle factors.

Taking their research further, the team examined brain scans from 754 individuals. They discovered that moderate drinkers showed lower activity in the amygdala, the part of the brain responsible for processing stress.

In contrast, those who drank little or no alcohol had higher stress-related activity in the amygdala. This heightened stress response in non-drinkers was associated with a greater risk of heart conditions, such as heart attacks and strokes.

The amygdala’s role in heart health is significant. When it is frequently activated by stress, it can raise heart rate and blood pressure and promote inflammation—factors that increase the risk of heart disease.

By reducing stress signals in the amygdala, alcohol may help lower these risks. Interestingly, the protective effects were even stronger for people experiencing chronic stress, such as those with significant anxiety.

However, the researchers also highlighted the risks of alcohol consumption. Even moderate drinking can increase the risk of cancer, and excessive alcohol use can harm both the brain and heart. For this reason, the study does not promote alcohol as a solution for heart health.

Instead, the team is now investigating alternative methods to achieve the same stress-reducing effects. Approaches like exercise, meditation, and specific medications are being explored as safer ways to protect the heart.

This research sheds light on a potential mechanism linking moderate alcohol consumption to reduced heart disease risk while emphasizing the need for caution.

By lowering brain stress signals, alcohol might provide temporary protection, but its risks cannot be ignored. The study ultimately highlights the importance of finding healthier strategies to reduce stress and improve heart health without relying on alcohol.

If you care about coffee, please read studies that drinking coffee this way can help prevent stroke, heart disease, and drink coffee after breakfast, not before, for better blood sugar control.

For more information about nutrition, please see recent studies about natural supplement that could relieve anxiety, and results showing this common food oil in the U.S. can change genes in the brain.

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