Most of us know that drinking beer and wine in moderation is good for our health, but did you know that these two beverages also have protective effects against dementia? In this article, we will explore the scientific evidence behind this claim and find out how much you should drink to reap the benefits.
What is dementia?
Dementia is a general term for a decline in mental ability severe enough to interfere with daily life. It is a group of symptoms that affect memory, thinking, and social skills, among other functions.
Alzheimer’s disease is the most common type of dementia, followed by vascular dementia, Lewy body dementia, and frontotemporal dementia.
Dementia affects millions of people worldwide and is a major cause of disability and dependence in older adults.
What causes dementia?
The exact cause of dementia is not known, but it is believed to be a combination of genetic, lifestyle, and environmental factors.
Some of the lifestyle factors that increase the risk of dementia include:.
- Poor diet
- Lack of exercise
- Smoking
- Heavy alcohol consumption
In addition, cardiovascular disease, high blood pressure, high cholesterol, and diabetes may increase the risk of dementia.
How can beer and wine protect against dementia?
The protective effects of beer and wine against dementia are believed to be due to their antioxidant and anti-inflammatory properties.
Antioxidants help to protect cells from damage caused by free radicals, which are molecules that can cause oxidative stress and contribute to the development of dementia.
Anti-inflammatory compounds help to reduce inflammation, which is a process that can damage brain cells and increase the risk of dementia.
Beer and wine also contain resveratrol, a compound found in the skin of red grapes that has been shown to have neuroprotective effects and improve cognitive function.
Beer and dementia
A study published in the Journal of Alzheimer’s Disease found that moderate beer consumption was associated with a lower risk of Alzheimer’s disease and other forms of dementia.
The study followed over 1,000 participants aged 65 and older for an average of six years. The researchers found that those who consumed one to two beers per day had a 35% lower risk of dementia compared to those who did not drink beer.
However, the protective effect of beer was only observed in those who had the APOE e4 gene, which is a major genetic risk factor for Alzheimer’s disease.
The researchers noted that the protective effect of beer was likely due to its high content of silicon, a mineral that has been shown to reduce the accumulation of aluminum in the brain, a factor that has been linked to the development of Alzheimer’s disease.
Wine and dementia
Similarly, studies have also found that moderate wine consumption is associated with a lower risk of dementia.
A study published in the Journal of Alzheimer’s Disease followed over 1,400 participants aged 65 and older for an average of four years.
The researchers found that those who consumed one to three glasses of wine per day had a 28% lower risk of dementia compared to those who did not drink wine.
Another study published in the American Journal of Epidemiology followed over 4,000 participants aged 65 and older for an average of seven years.
The researchers found that those who consumed moderate amounts of wine had a lower risk of dementia compared to those who did not drink wine.
The protective effect of wine is believed to be due to its high content of polyphenols, a group of antioxidants that have been shown to improve cognitive function and reduce the risk of dementia.
How much should you drink?
While moderate beer and wine consumption have been shown to have protective effects against dementia, it is important to note that excessive drinking can increase the risk of dementia and other health problems.
The American Heart Association defines moderate drinking as one to two drinks per day for men and one drink per day for women. One drink is defined as 12 ounces of beer, 5 ounces of wine, or 1.5 ounces of distilled spirits.
It is also important to note that people with certain health conditions, such as liver disease and pancreatitis, should not consume alcohol.
Conclusion
Beer and wine in moderation have been shown to have protective effects against dementia, likely due to their antioxidant and anti-inflammatory properties.
However, excessive drinking can increase the risk of dementia and other health problems, so it is important to consume these beverages in moderation.