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People who live near major roads have higher rates of dementia, research published in The Lancet suggests.
Up to 11% of cases of dementia in people who live within the 50M from the main road could be down to traffic, the study suggests.
Researchers who followed nearly 2M people in Canada more than 11 years and say,
he said, air pollution or noisy movement can contribute to the reduction of the brain.
It dementia experts in the outcome of the United Kingdom need to investigate but it was “reasonable”.
Nearly 50 million people worldwide suffer from dementia.
However, the causes of the disease, which robs people of their memory and brain power, and incomprehensible.
This was followed by a study in The Lancet by nearly two million people in the Canadian province of Ontario, between 2001 and 2012.
There are 243,611 cases of dementia diagnosis and during that time,
but the biggest risk for those living closest to major roads.
The 300M compared with those who live far away from the main road risk:
7% higher within 50M
4% higher between 50-100m
2% higher between 101-200m
This can be caused by the analysis of 7-11% of cases of dementia within 50M from the main road by the traffic.
The researchers adjusted the data to account other risk factors such as poverty, obesity, and levels of education, smoking, and therefore it is unlikely to explain this relationship.
Said Dr. Kong Chen of health public in Ontario and one of the authors of the report: “Increasing population growth, urbanization and developed many close to the heavy traffic, and with exposure to a wide range of traffic and increased dementia rates, and even a modest impact of exposure near -road, can be a burden a significant public health.
“There is a need for more research to understand this link, particularly the implications of various aspects of the movement, such as air pollutants and noise.”
The researchers point to the hype, and the nanoparticles, and can participate nitrogen oxides and particulate matter from tire wear.
However, the study only look at where people live with dementia. Can not prove that the roads that cause disease.