Dementia rates 'higher near busy roads'

It is not pollution, it is the noise and the low quality of sleep that causes dementia. Good sleep quality is important so the glymphatic system that cleans the brain of garbage while sleeping can work well. See this recent article: <a href="https:&#x2F;&#x2F;www.scientificamerican.com&#x2F;article&#x2F;nedergaard-how-the-brain-dumps-its-trash-video&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.scientificamerican.com&#x2F;article&#x2F;nedergaard-how-th...</a>

In terms of pollution I&#x27;m assuming we are talking about NOx, PM2.5, and PM10. However it would be useful to understand if lead, banned in most countries around 2000, impacts dementia and whether this is now beginning to show itself within this study.

Could there be some guarding reflex, that detects irregular sound or the absence of regular sounds and jump starts the sleeping mammal if predator presence is detected?<p><a href="https:&#x2F;&#x2F;dash.harvard.edu&#x2F;bitstream&#x2F;handle&#x2F;1&#x2F;5342191&#x2F;Acerbi%20and%20Nunn%20AB.pdf?sequence=1" rel="nofollow">https:&#x2F;&#x2F;dash.harvard.edu&#x2F;bitstream&#x2F;handle&#x2F;1&#x2F;5342191&#x2F;Acerbi%2...</a><p><a href="http:&#x2F;&#x2F;the.sleep.ru&#x2F;lib&#x2F;NeurosciBiobehavRev_2008_dolphins.pdf" rel="nofollow">http:&#x2F;&#x2F;the.sleep.ru&#x2F;lib&#x2F;NeurosciBiobehavRev_2008_dolphins.pd...</a>

Hum. I live maybe 3000 feet from very busy road. Luckily there is forest between my home and the road. From the article it would seem that my &quot;risk factor&quot; is nil.<p>At 63 I am starting to think more about dementia risk factors.

There is a correlation between living near busy (noisy) roads and sleep deprivation and also between sleep deprivation and dementia.<p>Seems like a possible mechanism that didn&#x27;t appear to be explored.

Easy to imagine vascular dementia rates being higher due to air pollution, would be interesting to see if rates of non-vascular dementia, such as Alzheimer&#x27;s are also higher.

Shouldn&#x27;t car mechanics also have higher dementia rate?

Has the study been replicated? If not, we can&#x27;t know whether it was a statistical fluke, bad methodology, or some other oversight in the experiment.<p>(I know they do statistical tests, but they often use the wrong tests.)<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Replication_crisis" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Replication_crisis</a>

I was wondering lately why noise-cancelling technology is not used inside residential-buildings? Is there such a big difference between making this technology work inside my Bose-headphones vs an apartment? Street-noise seems pretty predictable and steady from afar.<p>edit: bad bad grammar

Perhaps a correlation to people who live busier&#x2F;more stressful lives in general.

Are there any educated, rich people with a healthy lifestyle living within 200 m of a busy road around? I would be interested in your stance on this.

A study like that need to be conducted in New York City (USA), especially in Manhattan and Brooklyn.

Can&#x27;t read the article because it&#x27;s behind a paywall (sigh).<p>Any indication of how the researchers defined a &#x27;major road&#x27;? Was it purely size or done by traffic throughput over time? Or did they be use air pollution &#x2F; noise measurements instead?

Is it possible to filter out particulates in the home?

Ehhhh I feel like the researchers took 5000 variables and threw them at the wall to see what sticks.<p>Living near busy roads is usually cheaper... And I doubt people with dementia are locking down C level positions