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Two new dementia risks identified by major report (bbc.com)
27 points by tagawa 3 months ago | hide | past | favorite | 14 comments



It's interesting to look at the list of factors from the article - there's an obvious set of physical factors (obesity, cholesterol, smoking, etc), and then there's things like hearing loss, social isolation, and now visual loss, that all seem to be associated with less input to the brain or less informational processing. There's also the studies around staying cognitively active - my understanding is a lot of that is building additional capacity so the effects of dementia & Alzheimers are less noticeable, but it's interesting to see this kind of almost "hardware/software" split in the risk factors.

Depression is an interesting one because it's so multicausal that I'd almost wonder if it's a comorbidity, rather than a risk factor.


There is also the idea that while sedentary behavior is bad, the type of sedentary behavior mattered:

"television viewing time was also linked with a decline in cognitive function five years later for all cognitive tests"

Compared to using a computer, presumably more engaging and lass passive.

https://www.health.harvard.edu/blog/does-less-tv-time-lower-...


For anyone who wants to help do something about dementia, at least in a tiny way, and is perhaps concerned about their own risk of dementia there is a pretty easy way you can contribute.

The UCSH Brain Health Registry :

https://www.brainhealthregistry.org

You can register and every few months you answer some questions about yourself and do some fairly basic mental health tests.


Is this based on an intervention study or were they just looking for correlations?


looks like correlation to me...

Intervention studies are so huge one rarely gets statistical power because there are normally only ~10 participants...


Why are they so much more expensive to run? Is it labour? If so is there a way to bring the cost down by leveraging some technology?


For observational studies the data has often already been collected. Annually survey a few tens of thousands of people, anonymize that, store it... in 10 or 20 years you go back and see how those people did. Induct a new cohort each year.

The same base data can be used for an infinite number of studies.


Let's not forget viruses like Covid which is still wreaking havoc on our brains.

Danielle Beckman is not only researching this space but trying to make us more aware:

https://ucdavis.app.box.com/s/6stuakg87dvmhjhkmg2j9219sou28u...

https://www.daniellebeckman.com/projects-8

https://x.com/danibeckman


I’m surprised poor sleep isn’t on the list.


failing eyesight and high cholesterol

I hate those headlines that could easily be informative but instead are optimised for clicks.


I see what you’re saying but I felt like the whole article was informative, save the anecdote in the middle about how horrible Alzheimer’s is (I already know). There are 14 factors associated with dementia, most of which I wasn’t aware of.

I’m with you on the war against click bait though.


Clickbait would be

> 14 health issues linked to dementia, you won't BELIEVE number 7


The one secret people with dementia will forget to tell you! (there are actually two!!)


This is just press as a whole history. Even if your goals are altruistic the old press days still wanted people properly informed, and not just reading a tweet.

In the most mechanical way, you can consider this "click bait", but click bait carries a connotation of misleading the reader, not simply invoking curiosity to read the full story.




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