Dunno, the probable link with microplastics in the brain worries me

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So, they were “surprised” not to find a slowdown toward the end of observation period, for obvious reasons of the ongoing pandemic linked to dementia presentation and progression. They have some explanation for this about the long onset, but just demographically, isn’t it also likely that killing off many of the people most likely to get a dementia diagnosis made a difference? I feel like they missed that thread.