this post was submitted on 10 Jul 2026
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Fuck Cars

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  • A tire chemical called 6PPD-Q, already blamed for killing salmon, was examined for possible links to Alzheimer’s disease in a new computer-based study.
  • Using computer models, researchers found that the chemical can latch onto several proteins associated with Alzheimer’s and reach brain regions involved in the disease.
  • No patients or animals were tested; the study rests entirely on computer predictions and reused datasets, so it cannot prove the chemical causes Alzheimer’s.
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[–] psivchaz@reddthat.com 6 points 1 week ago (3 children)

Interesting but I'm going to predict this goes nowhere. It doesn't look like the US has excessively high Alzheimers rates compared to countries that use less cars. The Netherlands still has plenty of Alzheimers diagnoses. I feel like you'd expect to see more regional variation if we could tie it to something like tires.

[–] tyranny@crazypeople.online 6 points 1 week ago

from what I've heard, the Netherlands was a lot more car-based in the 1960s. is it possible that there is a delay to the difference in diagnoses?

[–] infinitesunrise@slrpnk.net 4 points 1 week ago* (last edited 1 week ago)

The Netherlands actually has one of the densest road networks in the world, and it's possible that the concentrations necessary for harm could be very low.

[–] apfelwoiSchoppen@lemmy.world 3 points 1 week ago (2 children)

Bikes have galvanized tires too.

[–] infinitesunrise@slrpnk.net 3 points 1 week ago (1 children)
[–] apfelwoiSchoppen@lemmy.world 3 points 1 week ago

Thanks for the correction, so edited. 🖖

[–] phutatorius@lemmy.zip 0 points 1 week ago

Bike tires have less mass, accumulate much smaller mileage in a given time period, and are under far less mechanical stress than motor vehicle tires, so it's likely that they barely contribute to the overall shedding of these chemicals into the environment.