Health
Alcohol Consumption Linked to Higher Dementia Risk, Major Study Finds
A major new study has found that alcohol consumption increases the risk of dementia, regardless of whether people are genetically predisposed to the condition. The research adds to mounting evidence that even moderate drinking may be harmful to long-term brain health.
The study, published in BMJ Evidence-Based Medicine, examined data from around 560,000 people in the United Kingdom and the United States, along with genetic information from 2.4 million individuals. Researchers tracked drinking habits and compared them with dementia diagnoses, while also studying genetic markers associated with alcohol use to measure its cumulative impact over a lifetime.
The findings were clear: the more alcohol a person consumed, the higher their risk of dementia. For example, someone who drank three alcoholic drinks per week was found to be 15 percent more likely to develop dementia than someone who consumed just one drink per week.
“For anyone who chooses to drink, our study suggests that greater alcohol consumption leads to higher risk of dementia,” said Stephen Burgess, a statistician at the University of Cambridge and one of the study’s authors.
The analysis also challenged the long-standing belief that low levels of alcohol might offer health benefits. “Genetic evidence offers no support for a protective effect – in fact, it suggests the opposite,” said Dr. Anya Topiwala, senior clinical researcher at the University of Oxford.
While the study does not prove alcohol directly causes dementia, it reinforces strong biological evidence of a harmful link. Tara Spires-Jones, director of the Centre for Discovery Brain Sciences at the University of Edinburgh, who was not involved in the research, noted: “Fundamental neuroscience work has shown that alcohol is directly toxic to neurons in the brain.”
Previous studies have supported these concerns. Brain imaging research has shown that drinking even one or two units of alcohol a day is associated with reduced brain volume and structural changes that may contribute to memory loss and dementia.
Globally, dementia affects more than 55 million people, according to the World Health Organization, and is projected to rise sharply as populations age. With no cure currently available, prevention strategies have become a key focus for researchers and policymakers.
The authors of the latest study argue that reducing alcohol consumption could play an important role in lowering dementia risk. “Reducing alcohol consumption across the population could play a significant role in dementia prevention,” Dr. Topiwala said.
The findings add weight to growing calls for public health campaigns that emphasize the risks of alcohol—not just for the liver and heart, but for the brain as well.
Health
World Cup Emotion Can Strain the Heart, Cardiologists Warn Fans at Risk
As the World Cup begins, medical experts are cautioning football fans with underlying heart conditions that the emotional intensity of matches can place unexpected strain on the cardiovascular system.
Cardiologists say that the excitement, tension, and anxiety generated during high-stakes games can trigger physical reactions similar to intense exercise, raising heart rate, blood pressure, and stress hormones.
“Intense emotions, whether positive or negative, can act as ‘precipitating risk factors’ for cardiovascular events such as heart attack,” said Paola Santalucia, a cardiologist and board member of the European Heart Network.
She explained that moments of extreme excitement, such as a decisive penalty shootout or a last-minute goal, may pose risks for people already living with heart disease. Those with additional risk factors, including hypertension, obesity, or smoking habits, are also advised to be cautious during emotionally charged matches.
Research using wearable devices has shown that during major football events, some fans experience heart rates climbing as high as 150 beats per minute. That level is comparable to sprinting and reflects how strongly the body reacts to emotional stress.
A study examining supporters during the 2025 German Cup final found that even watching from home can significantly affect physiological responses. “They still had an increase in heart rate that compares to walking, even though they didn’t walk,” said Christian Deutscher, professor of sports economics at Bielefeld University and co-author of the study.
He noted that the most intense reactions often occur not during goals themselves, but during moments of uncertainty such as VAR checks, penalty shootouts, or shots striking the post. These unpredictable situations, he said, are what drive the strongest emotional and physical responses among fans.
Deutscher also pointed out that stadium spectators may experience even greater strain due to environmental factors such as heat and alcohol consumption.
However, experts emphasize that football itself is not inherently dangerous. Instead, it is the body’s natural response to excitement that can create temporary stress.
“The adrenergic stimulation is at its max: extreme high blood pressure, high heart rate, and adrenaline, cortisol, skyrocketing,” said Dan Atar, professor of cardiology at Oslo University Hospital. In rare cases, he added, this surge can contribute to the rupture of arterial plaque in vulnerable individuals, potentially leading to a heart attack.
Atar stressed that such events can occur in everyday situations as well, including physical exertion like shoveling snow. “It is in no way dangerous to watch a football game,” he said. “All this is physiologic. It’s not dangerous to be excited.”
Still, he acknowledged that combining emotional stress with alcohol, heat, and pre-existing conditions can increase risk for some viewers.
Doctors advise those at higher risk to continue prescribed medications, limit alcohol intake, avoid smoking, and watch for warning signs such as chest pain or irregular heartbeat.
“The key message is not to avoid enjoying the match, but to do so with moderation and awareness,” Santalucia said.
Health
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Health
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