Cleaner air can mean a healthier brain for older females

Friday, January 14, 2022 (HealthDay News)

Everyone knows that clean air means a healthier body, but new research suggests that it may also help. aging heart.

“our study It’s important because it’s one of the first to show that reducing air pollution over time can help older women’s brain health by reducing their chances of developing. dementia“. The co-author of the study, Xinhui Wang, is an assistant professor of neurology research at the Keck School of Medicine at the University of Southern California in Los Angeles.

Previous studies have shown that later exposure to air pollution Increased risk of dementia, But how Improved air quality affects brain health It wasn’t clear.

To find out, researchers analyzed data from more than 2,200 US females (ages 74-92) who underwent an annual test of mental function between 2008 and 2018 as part of a long-term study. did.They didn’t have dementia When the research started.

Researchers used the woman’s home address to estimate exposure to air pollution during the period.

People who live in areas where the two air pollutants (fine particles and nitrogen dioxide, a traffic-related pollutant) are most depleted, dementia According to the survey results published online on January 11, it will decrease by 14% and 26%, respectively. Minutes of the National Academy of Sciences..

Although this study could not prove a causal relationship, the brain benefits associated with cleaner air were consistent regardless of age or financial status. Heart disease Risk Factors and Genetic Risk Factors dementia When Alzheimer’s disease Known as the apolipoprotein E genotype.

“The message of takeaway is that reducing exposure to air pollution can promote a healthier brain. aging“Wang said in a university news release.

dementia The authors of the study said it affects women disproportionately.

Diana Yunan, a former senior researcher at Keck School of Medicine and co-principal research author, said: Alzheimer’s disease Illness and associated dementia can be very costly to the health care system and family.

“Our research shows that stricter air quality standards can help prevent this. Alzheimer’s disease Diseases and associated dementia in older women, in turn, reduce their social burden. “

For more information

Alzheimer’s details reductions Risk of dementia..

Source: University of Southern California, News Release, January 10, 2022

Robert Plate

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Cleaner air can mean a healthier brain for older females

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