Alzheimer’s disease is the most common cause of dementia in older adults. It is a brain disorder that slowly destroys memory and thinking skills. Over time, it gets worse, making it difficult for people to do everyday tasks.
Scientists know that certain health problems, such as high blood pressure and diabetes, can increase the risk of Alzheimer’s. However, they are now discovering that personality traits might also play a role in protecting the brain.
A recent study from the University of Geneva found that people with certain personality traits may have better protection against brain damage linked to Alzheimer’s disease.
Specifically, those who are less agreeable, more curious, and more independent tend to have stronger brain structures, particularly in areas related to memory. These areas are usually the first to be affected by both normal aging and Alzheimer’s disease.
The study followed a large group of people over 65 years old. Scientists used advanced brain imaging techniques to examine their brains over time. They looked at two key signs of Alzheimer’s—amyloid buildup (a type of protein linked to the disease) and brain volume loss (which happens as brain cells die).
The results showed that people who were less agreeable, not afraid of conflict, and tended to go against the majority had healthier brain structures.
This finding may seem surprising. Usually, being agreeable—meaning kind, cooperative, and eager to avoid conflict—is seen as a positive trait.
However, the study suggests that always trying to please others and avoiding disagreements may not be good for brain health in the long run. People who are more independent and challenge the status quo may have brains that are better protected from decline.
Another personality trait linked to brain protection is “openness to experience.” This refers to people who enjoy learning, exploring new ideas, and being curious about the world. Previous studies have also shown that staying mentally active and engaged can help slow down brain aging.
Although personality is difficult to change, especially later in life, these findings could be useful for doctors and researchers. They suggest that a person’s personality should be considered when assessing Alzheimer’s risk.
While no one can fully prevent the disease, understanding all the factors that contribute to brain health can help people take steps to protect their memory as they age.
This study, led by Professor Panteleimon Giannakopoulos, was published in the journal Neurobiology of Aging. Scientists continue to explore different ways to prevent Alzheimer’s, including new treatments and lifestyle changes that may help keep the brain healthy.
If you care about Alzheimer’s disease, please read studies that bad lifestyle habits can cause Alzheimer’s disease, and strawberries can be good defence against Alzheimer’s.
For more information about brain health, please see recent studies that oral cannabis extract may help reduce Alzheimer’s symptoms, and Vitamin E may help prevent Parkinson’s disease.
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