frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Semaglutide linked to 26% lower 5-year predicted dementia risk

https://alz-journals.onlinelibrary.wiley.com/doi/10.1002/dad2.70432
84•randycupertino•1h ago•46 comments

The First At-Home Test for Infected Ticks Could Improve Lyme Disease Diagnosis

https://www.smithsonianmag.com/innovation/the-first-at-home-test-for-infected-ticks-could-improve...
109•gmays•3h ago•40 comments

RISC-V: They Should Have Known Better

https://dmitry.gr/?r=06.%20Thoughts&proj=12.%20RV
67•dmitrygr•1d ago•215 comments

Auto-research with codex: How I achieved a 232x Faster Kernel

https://sankalp.bearblog.dev/autoresearch/
266•tosh•6h ago•74 comments

A controversial Alzheimer's surgery is said to reverse symptoms

https://www.nature.com/articles/d41586-026-02448-x
58•jeffreyrogers•1h ago•12 comments

A Spectre Is Haunting Unicode

https://www.dampfkraft.com/ghost-characters.html
41•sensanaty•3h ago•5 comments

Working with AI Feels More Like Leadership Than Coding

https://allen.bargi.org/notes/working-with-ai-feels-like-leadership/
149•allenb•7h ago•106 comments

2D Gaussian Splatting for Bézier Spline Line Art Vectorization

https://studios.disneyresearch.com/2026/07/16/2d-gaussian-splatting-for-bezier-spline-line-art-ve...
22•Jimmc414•17h ago•2 comments

The other Sean Byrne doesn't exist

https://conic.al/writing/the-other-sean-byrne-doesnt-exist/
325•rdl•13h ago•156 comments

The mathematical beauty of hyperbezier curves

https://linebender.org/blog/hyperbezier/
134•raphlinus•5d ago•16 comments

Show HN: Eigendrum - Draw any shape and hear what it sounds like as a drum

https://baselashraf81.github.io/eigendrum/
125•BaselAshraf81•5d ago•80 comments

Show HN: Quasicrystals Animation Playground with WebXR

https://hypnagogic-quasicrystals.github.io/
28•r34•4h ago•8 comments

The Dutch Community Where People Live on Strips of Land in a Lake

https://www.core77.com/posts/144869
21•Bowes-Lyon•58m ago•5 comments

Could a computer scientist build a brain?

https://stankerstjens.github.io/could-a-computer-scientist-build-a-brain/
30•ogundipeore•4h ago•17 comments

Yadda 3.0.0: BDD in the Age of AI Agents

http://www.stephen-cresswell.com/2026/08/15/Yadda-3.0.0-BDD-in-the-Age-of-AI-Agents.html
35•scresswell•4h ago•15 comments

TreasuryDirect: Prepare for ID.me – Your New Way to Log In

https://www.treasurydirect.gov/savings-bonds/idme-one-month/
8•Mindless2112•22m ago•6 comments

Going Dark, and the era of law enforcement hacking

https://blog.cryptographyengineering.com/2026/08/14/everything-is-about-to-go-dark/
420•vslira•20h ago•221 comments

Using GCC's Nested Functions with Wide Pointers and No Trampolines II

https://uecker.codeberg.page/2026-07-14.html
67•uecker•9h ago•34 comments

The Color of White Light

https://ludens.cl/photo/spectra/spectra.html
58•xk3•4d ago•37 comments

In 1962, Egypt's Missile Program Lost Its Key Scientist Without a Trace

https://www.popularmechanics.com/military/a73358518/nazi-rocket-scientist-disappearance/
99•bookofjoe•3d ago•63 comments

Qwen 3.8 27B

https://huggingface.co/Qwen/Qwen3.8-27B-FP8
1291•erdaltoprak•1d ago•751 comments

Google is making private AI practical with homomorphic encryption

https://blog.google/security/how-google-is-making-private-ai-practical-with-homomorphic-encryption/
465•u1hcw9nx•1d ago•272 comments

Europe's scorched landscapes seen from space after summer heatwaves

https://www.bbc.com/news/articles/c4gxy0wqqd9o
14•blondie9x•30m ago•1 comments

Möbius Strips and Differential Equations

https://hidden-phenomena.com/articles/monodromy
36•mbustamanter•5d ago•7 comments

Firefox is now the last major browser that still supports uBlock Origin

https://www.pcworld.com/article/3212428/firefox-is-now-the-last-major-browser-that-still-supports...
1525•DemiGuru•22h ago•573 comments

A Planet Position Widget

https://leancrew.com/all-this/2026/08/a-planet-position-widget/
11•speckx•2d ago•1 comments

Xorshift Generators

https://www.alanzucconi.com/2026/08/15/xorshift-generators/
18•tobr•5h ago•13 comments

T3X/0 a Minimal Procedural Language

https://t3x.org/t3x/0/index.html
22•AlexeyBrin•5h ago•0 comments

RustDesk now supports true unattended remote access on Wayland

https://rustdesk.com/blog/unattended-remote-access-wayland/
329•rustdesk•1d ago•140 comments

Printytron – Type it. 3D Print it

https://printytron.com
5•statenjason•3h ago•0 comments
Open in hackernews

Semaglutide linked to 26% lower 5-year predicted dementia risk

https://alz-journals.onlinelibrary.wiley.com/doi/10.1002/dad2.70432
80•randycupertino•1h ago

Comments

randycupertino•1h ago
This is interesting. Diabetes is a well-known risk factor for dementia.
toomuchtodo•1h ago
Western disease and sugar heavy diets broadly speaking, which Semaglutide is a countermeasure against. Not yet a vaccine, but in due time (probably via gene therapy). Fructose also helps cancer metastases and spread.

https://www.sciencealert.com/common-sugar-appears-to-loosen-...

Alien1Being•43m ago
Robert Kennedy Jr is that you.... ?
toomuchtodo•42m ago
Just pattern matching as an autistic human. Similar results were seen on a ketogenic diet (and to some extent, intermittent fasting). What do they have in common? Sugar intake reduction. Is it surprising sugar potentially fuels cancer, contributes to dementia, etc? It shouldn’t be. It’s indirect and a casual connection.

There is no health benefit to a high sugar or Western diet, only downside. I think calling it poison is hyperbole, but it’s definitely not healthy, based on all available evidence. I expect to see longitudinal scale results over the next decade as everyone starts taking GLP-1s.

(I take a glp-1, they’re an amazing drug class, it changes how your brain operates, charlie day waving arms in front of a whiteboard meme here)

BenzeneDream•11m ago
Thats due to caloric restriction. A high fat diet isn't going to helpful as well. To think that people cut sugar but continue to eat far too much meat and fat... yikes.
tptacek•22m ago
I don't see anything RFK-like in that comment.
diath•26m ago
> Western disease and sugar heavy diets broadly speaking

No, just being sedentary. There's no such thing as acquired diabetes in physically active people.

victorbjorklund•16m ago
Doubt you can eat just pure fructose for 30 years and ”move” and avoid diabetes.
adjejmxbdjdn•16m ago
First of all it’s a nice study. The dosages they always give are way too high and mice are rarely a reliable model.

But you’re also ignoring the fact that the same study shows that glucose inhibits the behavior.

So your claim that the study indicates its sugar is incorrect. The study indicates a possible impact from fructose which is countered by glucose, so the real issue is the fructose to glucose ratio.

Table sugar providing equal fructose and glucose molecules is acquitted by this study.

gloryjulio•10m ago
Sugar heavy diets is everywhere IF people can afford to have them if you look at the data. There is no such thing as Western vs Eastern in this sense.

Note I am not Western

roryirvine•1h ago
As is being sedentary - there are probably lots of interconnected factors in play, and GLP-1 receptor agonists seem to help with more than one (perhaps even many) of them.

Unpicking the exact chains of causation is likely going to be extremely complex, but the general picture continues to look good.

AFF87•1h ago
We are very early in the semaglutide world, exciting times ahead!
ndr•50m ago
For sure we still need to find out many related outcomes.

Last year it become known that it increases (high relative risk, low absolute risk) non-arteritic anterior ischemic optic neuropathy (NAION), ie sudden, sometimes permanent vision loss.

https://www.ema.europa.eu/en/news/prac-concludes-eye-conditi...

mapontosevenths•40m ago
To save others the click: It increased the likelihood to 1 in 10,000 in adults with type 2 diabetes.

Diabetics are already more prone NAION. This studies contribution was to show that diabetics on GLP-1's are MORE prone. It does not show that the general population is more prone when taking GLP-1's.

I didn't check to see if other studies prove that.

thrtythreeforty•32m ago
It is well known that forcing a sudden drop in chronically high average blood glucose (like, from 200+ to a normal ish range) with insulin can cause vision loss. I wonder if it's the same mechanism?
adam_arthur•9m ago
It tends to happen when:

1) You must have a crowded optical disc as a precursor (low cup to disc ratio). Genetic and can be tested

2) You have stiff veins/arteries due to poor metabolic/cardio health

3) when blood pressure drops too much, blood flow can get cut off to the optical nerve temporarily due to reliance on high blood pressure due to 2

4) Due to loss of blood flow, optic nerve swells and closes blood flow into the eye due to 1

Alien1Being•48m ago
"Semaglutide attenuates a proteomics-based dementia risk signature "

ie : clinically meaningless.

The company behind this, Novo Nordisk is increasingly desperate, as tirzepatide destroys the semaglutide revenue stream and the consequent job losses decimate the company

Scharkenberg•23m ago
Can you elaborate on your claims? As it currently stands, I’m only reading meaningless drivel from you.
dghlsakjg•14m ago
Their operating profit was up 11% on a margin of 44% according to their recent quarterly release, and they beat EPS by 23%. They were in a little trouble in the stock market a few years ago as competitors came online, but they are doing pretty well right now.

They have launched new semaglutide oral products which are growing faster than previous products, and they have multiple drugs in the research pipeline in late phases.

anonuser123•20m ago
Read a interesting piece recently that Semaglutide reduces inflammation, and very likely the weight-loss and a lot of the other emerging benefits are likely the effects of reduced inflammation.
Aurornis•7m ago
> and very likely the weight-loss and a lot of the other emerging benefits are likely the effects of reduced inflammation.

That’s not correct. GLP-1s interact with satiety (fullness) circuits and reduce appetite. They also have minor effects delaying gastric emptying, meaning the stomach stays full longer.

There is some early data suggesting that they might reduce some inflammation markers slightly more than weigh loss alone, but losing weight and controlling food intake without GLP-1s reduces the same inflammatory markers. The question now is if GLP-1s have additional anti-inflammatory influence.

I don’t know why someone would claim all of their effects are downstream of inflammation. Some people get stuck in modes where they think inflammation is the cause of everything and can’t comprehend causal effects going in the other direction.

goda90•20m ago
Isn't lower calorie consumption in general correlated to longevity? (Assuming no major malnutrition)
1970-01-01•19m ago
That's a big percent for something that is completely devastating. This is objectively good news.
antonmks•16m ago
Absolutely magical drug ! It makes you thinner, younger and now smarter !
londons_explore•16m ago
So has anyone managed to separate the effects of semaglutide from the effects of weight loss?

If this is caused by the weight loss, it is a little disappointing that public health didn't act quicker - lots of people have been overweight for a century now, so literally 10's of millions of people could have been saved from dementia had action been taken 100 years ago.

a-dub•9m ago
that is the interesting question. also the effects of weight loss vs. the effects of disengagement with the engineered to be addictive "food products" side of the western diet.
lotsofpulp•4m ago
What is interesting about it?

Proper sleep, eating less (including liquid calories), and exercising have been the mainstream medical advice for many decades.

Obviously, most people can’t accomplish that for whatever reason, so another solution was needed.

object-a•7m ago
What should public health have done differently?
hattmall•4m ago
Treat junk food like cigarettes
emmabruns•6m ago
Even more so. Not absolute weight loss but the effect of loss of the systemic inflammation due to a surplus of visceral fat which has significantly more systemic effect than subcutaneous fat or other types of loss of mass.
declan_roberts•15m ago
If you're overweight or especially if you're T2D I highly encourage you to discuss GLP-1 with your doctor. If you're T2D then get research retatrutide which looks to be an actual cure for T2D by clearing liver fat. It should be released early next year but research-use is available and what everybody is taking. Companies like finnrick do public testing of research peptides and a good place to gather names.
01100011•13m ago
Semaglutide cleared my liver fat and fixed my moderate NAFLD in a matter of months. Why is retatrutide necessary?
brianfryer•11m ago
Semaglutide clears liver fat? I had no idea. I’m curious to know more about your protocol
declan_roberts•6m ago
Retatrutide has a specific mechanism for clearing liver fat (glucagon) which makes it one of the most effective ways to treat T2D. This is the 3rd agonist not found in semaglutide or tirzepatide.
antinomicus•3m ago
I’m on tirzepatide right now from Eli lily, and I’ve been very interested in Reta, but I can’t say that I jump at the chance to inject something into myself that hasn’t been tested directly on the actual thing I’m about to put into my body. I know there are testing companies that will test certain sources but it’s not like they’ve tested the vial you get. If there’s some kind of pathogen or bacteria or whatever in the vial you get, well, there’s no recourse: it was “for research use only”. That seems like an unacceptable risk, but I see so many people on the internet claiming miraculous results. Maybe if I knew someone in real life, but I know those biohacking subreddits and such are astroturfed to no end by companies looking to sell sketchy peptides.
p-o•12m ago
Although it's encouraging, they do mention that the reduction in the BMI also have an effect (they take it into the consideration by lowering the β −0.092 to β −0.066 (P < 0.001)).

Just skimming through it, it's possible there are direct benefits, but it could also be other environmental factor. This study will most likely generate others that give us more insight in the future.

Abishek_Muthian•10m ago
Scott Galloway keeps telling GLP-1 drugs would have much greater impact than AI, it looks like he could be correct.
01100011•6m ago
I'm a big semaglutide proponent after being on it for a year. I know research says it helps with inflammation, arthritis (separately from weight reduction), and all sorts of magical things.

I lost 40 pounds in a year(230 to 190) at age 50. Great! I also went from being active and fat(weightlifting with some cardio) to basically having no energy. In the last year I've had arthritis appear in several joints. I'm awake several times a night to pee(yeah, prostate is acting up but I still void completely. The semaglutide is like a diuretic for me at night.). I get waves of hypoglycemia like feelings where I feel weak and spaced out. I'm afraid to get off of it because now my joints can't handle the extra weight. My doc recommended going to every other week now that my BMI is normal but as far as I can tell that advice isn't backed up by any research. Anyway, it's a powerful drug that works well but is not without side effects.

adam_arthur•14m ago
It's also true that having a crowded optical disc is pretty much a required precursor condition to suffering NAION.

Which you can get checked for via a $50 optical scan.

No crowded disc, very little risk.

(Cup to Disc ratio of 0.2ish or less starts to present risk)

tptacek•19m ago
In addition to being closely associated with the conditions semaglutide treats, NAION is quite rare.
siva7•4m ago
>> If this is caused by the weight loss, it is a little disappointing that public health didn't act quicker

I imagine people hundred years in the future will think of our current society rightfully as dumbfucks. But should we be surprised? 50 years ago women didn't have voting rights; homosexuals were incarcerated in western societes; all because of moral and power implications of some powerful men. Not much different with Semaglutide.

SoftTalker•3m ago
With all the research into dementia and its causes, if there was a simple strong link to overweight I can't imagine that would not stand out in the data and be well known by now.