Reducing air pollution, increasing greenery could slow or prevent cognitive decline | Duke Kunshan University

Reducing air pollution, increasing greenery could slow or prevent cognitive decline

Despite cognitive decline being the most feared aspect of growing old, there is a lack of research into the potential effect air pollution and other risk factors can have on brain function, especially in developing countries. Using data from the Chinese Longitudinal Healthy Longevity Study to conduct two separate studies, environmental health expert John Ji and colleagues in China and the U.S. found that reducing exposure to PM2.5 (tiny, harmful airborne particles) could delay or prevent poor cognitive function, while increasing residential greenness could have a similarly positive effect.