n8henrie

Joined 12 years ago

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Member since
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https://n8henrie.com

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Recent submissions

Comment · 1 day ago
> who seem to be getting systematically misdiagnosed because of a lack of knowledge

In contrast, vitamin D testing seems to be fairly commonplace in my practice setting, and unfortunately I see it being used as a scapegoat for dubious symptoms routinely.

Comment · 1 day ago
> In this day and age, this shouldn't be an open question tbh.

Are you being paid by the Vitamin D council or something? I thought HN was about curious conversation.

> There is an extensive body of research, with dozens of meta-analysis / systematic reviews aiming to settle the score on this. If you let Claude or your favorite LLM du jour loose on Pubmed I'm sure it will surface some very reliable conclusions.

After I finished my degree in human nutrition, I decided to go to medical school because of the amount of free time I was spending on PubMed. I previously had high hopes for vitamin D, but I am now a skeptic specifically due to the dearth of rigorous and supportive studies on PubMed.

Do you have any favorite trials of exogenous supplementation that are in humans, large sample size, RTC with appropriate blinding, and have positive, meaningful / non-surrogate outcomes? This would seem easy to accomplish given its wide availability, low cost, and excellent safety margin.

Comment · 1 day ago
Change my mind:

Being active and getting outside are associated with a multitude of health benefits and is correlated with vitamin D level. The Vitamin D Council pushes vitamin D supplementation based on this research (and funds it?) but there is minimal methodologically rigorous research showing health benefits from exogenous supplementation.

Comment · 1 day ago
Did nobody read the article?

> While her symptoms are not directly linked to vitamin D deficiency

Comment · 1 day ago
Because they did not, that's ridiculous. Just correlation. Their symptoms sound very similar to vasovagal syncope, which is a fairly regular occurrence in young healthy people that perhaps skip breakfast and then get their blood drawn / experience nausea / many other causes. They generally recover fine with no intervention other than some rest and getting a meal.

The article even says explicitly:

> While her symptoms are not directly linked to vitamin D deficiency

Comment · 9 days ago
I've been really hoping to get Whisper running on a coral, but it can't even do that. There was recently some progress getting it to export to tflite (and even an official example added) but the coral is missing some instructions.
Comment · 23 days ago
Can you elaborate?

I don't understand why you would need Tailscale, for example -- shouldn't your VPS have a static address to which you can reach out from your home and also connect remotely, making Tailscale superfluous?

Comment · 24 days ago
You can find instructions for making and soldering on a small antenna to the common "mini" dev board that reportedly helps quite a bit
Comment · 26 days ago
Agreed -- not my wheelhouse, but couldn't you just build rust earlier in your process using LLD, then build mold, then build everything else?

Would that meant that building rust is slower, but everything else is the same, and you don't have to maintain a fork of another complex project?

Comment · 1 month ago
Along these same lines, it seems to me that patients in the US can rarely afford the exorbitant and escalating cost of medical care, so with increasing frequency they expend considerable effort trying to identify any possible error that they think could get them a break on their bill or enough of a legal case to give them a fighting shot at beating medical bankruptcy.

I have personal knowledge ofcases with acknowledged errors and apologies that have also resulted in the hospital eating the full cost of care.

Comment · 1 month ago
> there is quite literally no good evidence that boosters for Covid do anything for otherwise healthy people who have already been infected

Before I dive back into the literature, as you claim to be stating this in good faith... is the "good" load-bearing here? Relentlessly attacking methodology is an easy way to make this kind of general claim.

Also, are you talking narrowly about a group of people that has had COVID but never had a prior COVID vaccination? (In which case is it still a "booster"?) Or is a proper steelman of your position that anyone that has had COVID, regardless of prior vaccinations exposure, does not benefit from additional vaccination in any meaningful sense?

Comment · 2 months ago
NAC is now a pretty common intervention for alc hep -- by definition post drinking -- so I would bet the mice data doesn't translate.
Comment · 2 months ago
This is not the mechanism by which caffeine promotes wakefulness.
Comment · 2 months ago
TFA: https://news.ycombinator.com/item?id=19781756

Alzheimer's disease is a specific subtype of dementia; this article seems to be more focused on vascular dementia (or at least vascular risk factors) -- why I was curious about the relationship between e.g. smoking and fructose.

The association of fructose has been studied directly in the context of AD, and the hazard ratio is modest (and not necessarily dose-dependent) [0]:

> After adjustment for sex, age, MMSE at baseline, education level, SBP, treatment of hypertension, LDL, uric acid, prevalent diabetes mellitus, current smoking, alcohol consumption, dietary fiber intake, total energy intake, sugar in beverage, seafood, red meat, fried foods, animal fat, personal income, marital status, physical activity index, and BMI in the Cox regression model, participants with consumption of fructose more than 7 servings/week showed a higher risk of all-cause dementia and AD dementia (HR: 1.49, 95% CI: 1.14–1.84, P for trend < 0.001 for all-cause dementia; HR: 1.60, 95% CI: 1.22–2.01, P-trend < 0.001 for AD dementia) than subjects with no consumption for fructose. And the results remained comparable for participants with medium consumption of fructose (HR: 1.46, 95% CI: 1.30–1.79, for all-cause dementia; HR: 1.52, 95% CI: 1.14–1.91, for AD dementia) (see Table 2).

I haven't seen anything about the fructose content of brains of AD patients; do you have a (preferably non-video) reference / source?

[0]: https://www.sciencedirect.com/science/article/pii/S227458072...

Comment · 2 months ago
In the context of TFA, what hypothesis makes much more sense to you than what alternative?

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