“Transport noise linked to increased risk of dementia, study finds” [Guardian]. 

 “Now an “impressive” study involving two million adults, conducted over more than a decade, has concluded that people living in areas with transport noise face a higher risk of dementia, especially Alzheimer’s disease. The findings were published in the BMJ. Researchers investigated the association between long-term residential exposure to road traffic and railway noise and the risk of dementia among two million adults aged over 60 and living in Denmark between 2004 and 2017. The level of exposure at the most- and least-exposed sides of buildings was estimated for every residential address in the country. After taking account of potentially influential factors related to residents and their neighbourhoods, the study concluded that as many as 1,216 out of the 8,475 cases of dementia registered in Denmark in 2017 could be attributed to transport noise. Of those, ‘the diagnosis in an estimated 963 patients was attributed to road traffic noise, and in 253 patients to railway noise.'”