Diabetes, air pollution and alcohol consumption can be harmful to regions of the brain vulnerable to Alzheimer’s disease.
Researchers compared modifiable risk factors for dementia — which is characterized by the impairment of memory, thinking and reasoning — and studied how these factors appear to affect certain brain regions that are already particularly vulnerable to Alzheimer’s disease and schizophrenia.
These vulnerable regions of the brain develop during adolescence and help the brain process and integrate “bits of information across different modalities, across different senses,” said, an associate professor at the University of Oxford and co-author of the study. But “they’re the first ones to go when we start aging.”“What we’re trying to do is say: What are the common risk factors for dementia that are affecting these regions?” Douaud said.
A diagnosis of diabetes, the amount of nitrogen dioxide in the air and how often someone drinks alcohol — from never to daily, or nearly every day — were found to be the three most detrimental risk factors to these regions of the brain, Douaud said.is about twice as much as the other leading risk factors, Douaud said. The next major risk factors are sleep, weight, smoking and blood pressure.
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