“Even short-term exposure to air pollution impacts our brain performance and capacity to work”, according to researchers from The University of Queensland and Carnegie Mellon University. The study, based on actual data collected, reveals alarming correlations between air quality and cognitive function.
As pollution levels rise, the cognitive abilities of individuals decline, affecting concentration, memory, and overall mental well-being. The study, which was carried out in Queensland, clarifies the real-world effects that air pollution has on our everyday lives.
“Our research used data from Lumosity brain training games to investigate the impact of air pollution on adults living in the United States. The games we studied targeted seven cognitive functions: memory, verbal ability, attention, flexibility, maths ability, speed and problem-solving. We found that exposure to moderately high levels of fine particulate matter (PM2.5) caused a player to drop by almost six points in a 100-point scale where 100 represents the score of the top one per cent of cognitive performers. In fact, if you’re under 30 years old and you’re exposed to this level of pollution, your cognitive function declines by the same amount as ageing by 15 years,” Dr La Nauze said.
PM2.5 are tiny particles 2.5 microns or less in size.
If inhaled, PM2.5 can penetrate the lungs, enter the bloodstream and cause serious health problems, including heart disease and respiratory issues.
Dr La Nauze also states that while the health effects of PM2.5 were widely understood, this research was the first to use brain training data to study the potential impact on cognitive performance.
“Cognitive functions are skills that we use to process, store and use information – they’re critical to tasks ranging from making a cup of tea to self-regulating,” she said.
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