this post was submitted on 15 Jun 2026
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No they aren't, even without dementia or other cognitive conditions, aging causes mental decline. This is widely researched and known.
Yes Cognitive decline is well researched and starts way earlier than your 60s, but its also an umbrella term for a lot of things.
Reaction and processing speed goes down starting from your mid 20s, short and long term memory gradually declines in your 30s and your vocabulary decreases from the mid 40s. But the ability for complex judgement that's important here shouldn't start declining until your 60s. If you are in your mid 60s and are completely helpless when it comes to technologie that's been around for 10+ years, you either are in the early stages of a cognitive condition like dementia or you are willfully ignorant cause you can't be bothered to learn.
There are a few other causes, like excessive lead exposure (which is especially common for Americans) and malnourishment during you development (often the case for developing nations), but at least the former can be classified as a neurological condition.