Dementia onset may be influenced by road traffic and railway noise

Recent findings published in The BMJ have suggested associations between the level of noise from transportation surrounding residential areas, including road traffic and railway noise, to the risk of dementia.  The overall aim of the investigation was to study existing links between long-term residential traffic noise and the risk of dementia. In total, a population sample of 2 million individuals aged over 60 and living in Denmark between the years of 2004 and 2017 was used.  In order to assess the level of surrounding road traffic and railway noise, estimates of potential noise exposure based on each side of every residential address in Denmark were conducted. This was to determine the most and least exposed...