By Admin 
How Air Pollution Affects Memory And Brain Function: The effect of the air we breathe every day is not limited to just the lungs and heart. New research shows that air pollution can also harm our brain and memory. In particular, micro pollutant particles emitted from traffic, industry and forest fires have been found to be associated with weakening cognitive function. Let us tell you how pollution is affecting your brain.
Does it really affect the brain?
This study has been done by researchers from McMaster University of Canada and was published online in the journal Stroke on May 13, 2026. Research found that the performance of people living in areas where air pollution levels were high was relatively weak in tests related to memory, understanding ability and mental speed. Interestingly, this effect was seen even in areas where the level of air pollution is considered low according to international standards.
Which pollution has the greatest impact?
During the research, it was also revealed that people who were more exposed to traffic pollution showed signs of some subtle damage in the brain through MRI scans. This effect was found to be more pronounced in women. The researchers also took into account heart disease risk factors such as high blood pressure, diabetes and excess body fat, but the link between air pollution and brain changes remained.
gradually affect
Russell de Souza, associate professor in the Department of Health Research Methods, Evidence and Impact at McMaster University, says that dementia does not happen suddenly. It develops slowly over several decades. Identifying factors that can cause brain damage in the early stages and which can be prevented is extremely important to protect brain health in the future. Although this study does not directly prove that air pollution causes dementia, it adds another important link to the growing scientific evidence that air quality can affect memory and thinking as we age.
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Sandy Azab, lead author of this study and assistant professor in the Department of Medicine at McMaster University, says that Canada’s air is often considered clean, but our findings show that even low levels of air pollution can affect brain health. These changes often begin years ago without any obvious symptoms.
Study on people’s ability to think and understand
Researchers analyzed data from nearly 7,000 middle-aged people. They studied the relationship between long-term exposure to pollutants like PM2.5 and nitrogen dioxide and people’s ability to think. Experts believe that future and long-term studies will help in understanding how clean air can play a role in protecting the brain and memory.
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Disclaimer: This information is based on research studies and expert opinion. Do not consider this as a substitute for medical advice. Before adopting any new activity or exercise, please consult your doctor or relevant specialist.
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