Traffic-Related Air Pollution in Residential Areas Increases Dementia Risk: Study

traffic jam in HamburgDid you know that living in a busy city or even a residential area can increase your risk for dementia? A new study has linked traffic-related air pollution to an increased incidence of the neurodegenerative disease.

Researchers found that for every one microgram per cubic meter (µg/m3) increase of fine particulate matter exposure, the risk of dementia increases by 3%. So, if you’re looking for a safe place to live as you age, consider moving to a rural area with less air pollution.


The research published in the Neurology journal reviewed 17 studies that included participants over 40. A total of 91 million people were reviewed, and of those, 5.5 million people developed dementia. The study adjusted for several factors that affect a person’s risk of dementia, including age, sex, smoking, and education.

When rates of air pollution exposure were compared, it was found that people who did not develop dementia had a lower average daily exposure to fine particulate matter air pollutants than people who did have dementia. The U.S. Environmental Pollution Agency (EPA) believes an average yearly exposure of up to 12 µg/m3 is safe.

This study found that the risk of dementia increased by 3% for every one microgram per cubic meter (µg/m3) increase of fine particulate matter exposure.

“While our meta-analysis does not prove that air pollution causes dementia, it only shows an association, our hope is these findings empower people to take an active role in reducing their exposure to pollution,” said study author Ehsan Abolhasani, MD. “By understanding the risk of dementia through exposure to air pollution, people can take steps to reduce their exposure such as using sustainable energy, choosing to live in areas with lower levels of pollution and advocating for reduced traffic pollution in residential areas.”


This study shows an alarming trend of how the environment may be increasing the risk of illness and disease. While more studies are needed to fully understand the link between traffic pollution and brain function, this is a stark reminder that living away from air pollution, even in a residential area, could benefit your health.

Numerous Factors Can Affect Brain Health

While some degree of cognitive decline is nearly inevitable as you age, other numerous factors can take a toll on the ability of the brain to function at peak potential, such as exposure to traffic pollution. This can affect memory, concentration, and overall brain function.

The Smart Pill can help to enhance cognitive function and memory through 9 ingredients that help to support, nourish, and maximize brain health. These include ginkgo biloba, huperzine A, bacopa extract, rosemary extract, and a B vitamin complex. This unique formula helps to boost circulation, fight free radicals, and provide nutritional support to assist with cognitive function.

Author Bio

Sarah began her interest in nutritional healing at an early age. After going through health problems and becoming frustrated with the conventional ways doctors wanted to treat her illness (which were not working), she took it upon herself to find alternative treatments. This led her to revolutionize her own diet to help her get healthier and tackle her health problems. She began treating her illness by living a more balanced lifestyle through healthy food choices, exercise and other alternative medicine such as meditation. This total positive lifestyle change led her to earn a diploma in Nutritional Therapy from Health Sciences Academy in London, England. Today, Sarah enjoys helping others by teaching healthy lifestyle changes through her personal consultations and with her regular contributions to the Doctors Health Press. Also, passionate about following her dreams in life, Sarah moved to France and lived in Paris for over 5 years where she earned a certification in beadwork and embroidery from Lesage (an atelier owned by Chanel). She then went on to be a familiar face sitting front row and reporting from Paris Fashion Week. Sarah continues to practice some of the cultural ways of life she learned while in Europe. They enjoy their food, and take the time to relax and enjoy many of life’s little moments. These are life lessons she is glad to have brought back home with her.


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