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By Audrey Esther
September 19, 2018
You do not have to be a scientist to know that polluted air is probably bad for your health. But a new study suggests that it could also be bad for your brain.
The researchers found that residents in London's most polluted areas were 40% more likely to have dementia. Specifically, they found that the higher the levels of nitrogen dioxide and toxic airborne particles, the more likely people were to develop dementia. They say that noise pollution can also be a contributing factor.
The authors of the study admit that their research has certain limitations, including that the electronic medical records they have analyzed may not be accurate. In addition, they only looked at London, and further studies are needed to determine the causality.
But a Canadian study released last year found that people exposed to air pollution had a higher incidence of dementia, and a study released earlier this year linked air pollution in China with reduced cognitive performance.
According to the World Health Organization, about 50 million people suffer from dementia and it is the seventh leading cause of death in the world.
Additional content for the story provided by the affiliate of Newsy, CNN.
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