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Scientists may have found mechanism behind cognitive decline in aging

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Re: Scientists may have found mechanism behind cognitive decline in aging

#261
post #39

Earlier quoted context omitted.

Aspirin is famous for having teratogenic effects on rabbits and would never have been approved for humans if it were to be tested nowadays

Why? Plenty of teratogenic drugs are approved and in routine use in non-pregnant patients.

Any recent example?

Re: Scientists may have found mechanism behind cognitive decline in aging

#262
post #248

Earlier quoted context omitted.

No. There was a drug released that targeted that pathway, but the approval in and of itself was a scandal - I spoke with a pharmacist last night who said people at her hospital were disgusted by the FDA’s decision. It was removed from the market two weeks later. There was basically no evidence of efficacy.

FDA approves stuff all the time that has no efficacy

Not in the face of such overwhelming evidence; it’s literally their job to make sure things are effective. It turns out medical studies are weaker evidence than anyone would like, but here there was quite compelling evidence that it was useless!

Re: Scientists may have found mechanism behind cognitive decline in aging

#263

Earlier quoted context omitted.

Why? Plenty of teratogenic drugs are approved and in routine use in non-pregnant patients.

Any recent example?

Not really sure what you're getting at, teratogenicity only matters if a person is pregnant and lack of teratogenicity is in no way a requirement for FDA approval.

There are many commonly used drugs with teratogenic risks that we discontinue in pregnancy or counsel the patient on, picking randomly from a list of medications that were approved in 2023: sparsentan

I'm not sure if I'm missing something but why are you thinking teratogenicity matters when the vast majority of patients are not pregnant at a given moment?

Re: Scientists may have found mechanism behind cognitive decline in aging

#264

Earlier quoted context omitted.

Ehh. We’ve been here long enough to both know that there’s a balance. $10 says the mods won’t change the title to the suggested one, precisely because of this balance. It’s not about clickbaiting. The whole reason the research is getting funded in the first place is to try to find the link.

We really need "saved you a click" version of hacker news. Same UI just title recommended by users

The Artifact news reader app on iOS uses this premise to provide one of the truly useful implementations of LLMs I've seen in the wild so far. You can mark a title as clickbait, and the app will use AI to generate a new title, usually one that is more usefully descriptive.

It's not perfect, sometimes the generated title is still totally clickbait and I've seen a couple instances of it being completely wrong or hallucinating a detail. But generally it's pretty neat.

The app also uses the same tech to summarize articles into a few bullets which I don't use as often but is also neat.

Re: Scientists may have found mechanism behind cognitive decline in aging

#265

Earlier quoted context omitted.

Ohhh, I misinterpreted your comment. I think other people did too. It seemed as if you were saying that your dentist told you not to step foot in the dentist office at all for 18 months. But you just meant, the literal dentist doesn’t need to see you. Got it. I feel like this isn’t out of the ordinary now. I always hear every 6 months for a cleaning. This new “3-month” information takes a bit away from your original…

You're replying to a different person, now =]

Thank you! I assumed that only the person that I asked a question to would respond to me lol.

Re: Scientists may have found mechanism behind cognitive decline in aging

#266
post #257

Earlier quoted context omitted.

> A title is not "the most informative and complete sentence summarizing the article", it also has the goal to stimulate curiosity. Are you advocating clickbait?

Why did you italicize a word? Why speak with any emotion ever? Why not focus exclusively on the optimal method of transferring information from one being to another?

Why say lot word when few do trick?

Re: Scientists may have found mechanism behind cognitive decline in aging

#267

Earlier quoted context omitted.

Brief summarization that seems redundant to the topic because it's the model priming itself to generate a response in the requested form, which is usually a: 3-10 item list which mentions certain phrases related to the prompt every time ("nitric oxide" here). Disclaimer about accuracy/expertise.

So actually, it's a well formed answer?

It very likely bears a close resemblance to a member of the theoretical set of all well-formed answers.

Problem is all the other sets it belongs to, including the set of all answers containing unverified factual statements, not to mention the set of answers that resemble the output of a large language model.

Re: Scientists may have found mechanism behind cognitive decline in aging

#268
post #28

Earlier quoted context omitted.

If you take a lot of vitamin d, make sure you also take vitamin k. Just a random source here because I'm too lazy: https://www.balancedwellbeinghealthcare.com/are-you-taking-v... > Because vitamin D is so good at improving calcium levels, by taking it alone you could be working to increase the calcification of your arteries instead of strengthening your bones so make sure to include K2 in your vitamin D supplement re…

Make sure it's vitamin K2 and not K1. Vitamin K2 is what essentially takes calcium out of your blood and puts it in your bones (and teeth). It's something that's rather lacking in western diets and could be a big reason why people in western countries suffer so many bones injuries in old age (and why our teeth suck).

K1 or K2-mk4. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7928036/table/t...

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7928036

Re: Scientists may have found mechanism behind cognitive decline in aging

#269
> He pointed out that this would only work in normal age-related cognitive decline, not the decline seen in Alzheimer’s disease and dementia.

That's an important distinction. Alzheimer's disease is a specific problem, separate from long-term cognitive decline. That the mechanisms of both have been identified is real progress. One way medicine progresses is by differentiating causes of the same symptoms. Then specific treatments can be worked on.

Re: Scientists may have found mechanism behind cognitive decline in aging

#270
post #41

Earlier quoted context omitted.

Please note that overtaking vitamin D is unhealthy as well. It’s a hormone and I believe taking too much is damaging to the liver. But supplemental and when having a lack of Sun is probably a good balance. But if you can be in the sun your skin can make vitamin D.

Note that windows typically block the majority of the radiation that allows you to make vitamin D, so even if the sun hits you every day through your window, it's still not a good substitute for a sunny walk every once in a while. My doctor told me to go out at noon every day, but anything is better than nothing.

Nearly all Glass and Plastics block UV-B which is needed to make Vit D. UV-A found in tanning salons oxidises the melanin pigment aka the sun tan and melanin converts 99.9% of UV radiation and converts it into heat, so the suntan regulates how much pre-vitD can be made by the skin.

There is a corrugated plastic sheet (2mx1m) which allows UV-B through, but it needs replacing every few years as it breaks down and its expensive!

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