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European digital ID wallets are a gift to Google and Apple

https://waag.org/en/article/european-digital-id-wallets-are-gift-google-and-apple/
267•donohoe•2h ago•114 comments

The US ambassador had Belgian police stop our reporting

https://europeancorrespondent.com/en/r/the-us-ambassador-had-belgian-police-stop-our-reporting
122•robtherobber•2h ago•28 comments

Building a custom octocopter from scratch with no prior hardware experience

https://karolina.mgdubiel.com/drone/
99•noleary•2d ago•25 comments

Parse, Don't Validate – In a Language That Doesn't Want You To

https://cekrem.github.io/posts/parse-dont-validate-typescript/
33•fagnerbrack•1h ago•9 comments

Open Source Low Tech

https://opensourcelowtech.org/
353•grep_it•4d ago•65 comments

Sony erases digital content from libraries; reminded we don't own what we buy

https://arstechnica.com/gadgets/2026/06/sony-erases-digital-content-from-libraries-were-reminded-...
98•pseudolus•1h ago•38 comments

Qwen 3.6 27B is the sweet spot for local development

https://quesma.com/blog/qwen-36-is-awesome/
987•stared•19h ago•643 comments

Exercise intensity influences body composition in healthy older adults

https://www.maturitas.org/article/S0378-5122(25)00571-7/fulltext
51•bookofjoe•2h ago•49 comments

Antares Achieves Criticality of Mark-0 Reactor

https://antaresindustries.com/updates/antares-achieves-criticality
40•clarionbell•3h ago•28 comments

.self: A new top-level domain designed to support self-hosting

https://hccf.onmy.cloud/2026/06/21/reclaiming-our-digital-selves-hccfs-vision-for-a-human-centere...
554•HumanCCF•16h ago•321 comments

Free the Icons

https://weblog.rogueamoeba.com/2026/06/26/free-the-icons/
522•zdw•2d ago•171 comments

The operating cost starts after the demo

https://twoheads.net/the-promise-is-unattended-work/
37•hellokfk•4d ago•23 comments

Memory Safe Context Switching

https://fil-c.org/context_switches
153•modeless•12h ago•25 comments

LongCat-2.0, a large-scale MoE model with 1.6T total and 48B Active

https://longcat.chat/blog/longcat-2.0/
182•benjiro29•12h ago•47 comments

Rocketlab acquires Iridium

https://investors.rocketlabcorp.com/news-releases/news-release-details/rocket-lab-acquire-iridium...
424•everfrustrated•22h ago•279 comments

Linux for the Sega MegaDrive

https://github.com/LinuxMD/linuxmd
147•HardwareLust•21h ago•18 comments

Old Computer Challenge

http://occ.sdf.org/
82•wrxd•2d ago•32 comments

Exploring PDP-1 Lisp (1960)

https://obsolescence.dev/pdp1-lisp-introduction.html
88•ozymandiax•11h ago•22 comments

Ornith-1.0: self-improving open-source models for agentic coding

https://github.com/deepreinforce-ai/Ornith-1
222•danboarder•19h ago•41 comments

One million passports leaked online

https://www.theverge.com/tech/947157/passports-data-breach-cannabis-club-systems-nefos-puffpal
315•jruohonen•2d ago•191 comments

All Logic, No Bite

https://lcamtuf.substack.com/p/all-logic-no-bite
10•surprisetalk•3d ago•0 comments

Why Problem Statements Aren't Enough

https://letters.unchartedpathbreakthroughs.com/posts/why-problem-statements-arent-enough
7•mooreds•4d ago•3 comments

How to corrupt an SQLite database file

https://www.sqlite.org/howtocorrupt.html
102•tosh•3d ago•20 comments

US Supreme Court rules geofence warrants require constitutional protections

https://www.theguardian.com/us-news/2026/jun/29/supreme-court-geofence-warrants-case-decision
546•cdrnsf•20h ago•251 comments

30-year sentence for transporting zines is a five-alarm fire for free speech

https://theintercept.com/2026/06/26/daniel-sanchez-estrada-zines-prairieland-free-speech/
640•xrd•1d ago•375 comments

Zig – SPIR-V Backend Progress

https://ziglang.org/devlog/2026/#2026-06-26
81•Retro_Dev•4d ago•44 comments

Apple Neural Engine: Architecture, Programming, and Performance

https://arxiv.org/abs/2606.22283
193•Jimmc414•2d ago•25 comments

Dark Sky Lighting

https://www.savingourstars.org/darkskylighting#whatisdarkskylighting
223•alexandrehtrb•4d ago•40 comments

WATaBoy: JIT-Ing Game Boy Instructions to WASM Beats a Native Interpreter

https://humphri.es/blog/WATaBoy/
218•energeticbark•21h ago•34 comments

What happens when you run a CUDA kernel?

https://fergusfinn.com/blog/what-happens-when-you-run-a-gpu-kernel/
268•mezark•23h ago•31 comments
Open in hackernews

Exercise intensity influences body composition in healthy older adults

https://www.maturitas.org/article/S0378-5122(25)00571-7/fulltext
49•bookofjoe•2h ago

Comments

myst•1h ago
I’m genuinely confused. Was there any doubt before this study that sport makes people healthier?
nayroclade•1h ago
That wasn't what this study was investigating.
atwrk•1h ago
Well I guess reading the article could ease your confusion. Unsurprisingly it is a bit less generalized than your take.
dgacmu•1h ago
No, but past recommendations for older adults (note that the average age in the study was 72 years old) were towards "gentle" or moderate exercise. We're seeing a shift now towards recommending real weight lifting and higher intensity as we age. ("Real" -> closer to powerlifting in terms of goals and methods)
faangguyindia•1h ago
why is it powerlifting?

general prescription these days for Hypertrophy is 10 sets per muscle group per week 0-3 RIR.

rokob•1h ago
Because hypertrophy is generally pointless compared to strength. The hyperthrophy that naturally accompanies strength work is sufficient but the strength that accompanies hypertrophy work is far less beneficial.
faangguyindia•45m ago
one of the best proxy we've for Hypertrophy is getting progressively stronger in medium rep range. (8-12)

The title says they are focused on improving body composition which is boosting lean mass, lowering of fat mass which kinda seems achieved best by focusing on Hypertrophy and fat loss?

ehnto•56m ago
Hypertrophy and strength aren't as strongly linked as we thought. Generally for wellness, injury prevention, you want strength and flexibility.
dgacmu•26m ago
Mostly because functional strength is useful and keeps you alive. major goals as you age are avoiding falls and being able to continue doing things for yourself. Strength fits that bill pretty well (and it also improves fat free mass).

And on a slightly more technical note, recovering from higher volume becomes harder as you age, so focusing on a smaller number (5ish) of reps at higher weight gives you adaptation without quite as much stress.

But I should be clear, when I said real lifting, I don't mean to exclude any form of well calibrated progressive overload, whether that's strength focused or hypertrophy focused. I do mean to exclude the "go to the gym and lift a 10 lb weight the same number of reps each time" BS

mDyJzDPmBdG•1h ago
There was plenty of obvious, common sense assumptions that didn't hold at all when methodically tested, like sugar rush in children. And this specific type of studies tries to find a sweet spot between benefits and effort taken. Some results were unexpected, If I recall correctly on found that having to take three flights of stairs daily outperformed many exercise regimes designed for elderly.
ehnto•58m ago
I have met people who figured, because they don't excercise they don't wear their body out, so their joints etc. will last longer. Same for injury, no sport no injury, that must be good!
lukan•48m ago
In a way this is right with high intense/extreme sport. (I did Thai Boxing in my youth, but stopped at some point)

But it is very wrong otherwise, joints for example will suffer if not moved. Blood will only flow into all the areas of the joints if they are moved. And if you don't move, your muscles will be gone and without muscles to hold your joints, loss of stability, great risk of injury, etc.

busymom0•41m ago
And don't forget benefits of weight training in improving bone density and preventing osteoporosis as we age.
lukan•28m ago
And strengthening the nerves and all the other body parts that degrade with being idle.
arnejenssen•44m ago
Charlie Munger thought of exercise as adding mileage to the car.
ButlerianJihad•52m ago
Sports and exercise are definitely beneficial, but any sort of activity presents a risk of injury.

If people work out, or play sports, without knowing proper form, without using protection or precautions, they'll get injured and then worse off than before. Realistically, manual laborers should be in real good shape, but often their jobs are so low-wage, and they're so interchangeable, that safety precautions are ignored and must be regulated/enforced.

I took up roller skating and was rewarded with a broken leg. I took up gym exercise and was repaid with a hernia. Both required surgery. No regrets! Only wished I could've better understood how to exercise safely!

I once encountered a FB group that was for people to discuss "sports injuries sustained while we were in bed" and I could totally relate, having done weird stuff to my shoulder overnight, rather than pitching a baseball game...

xtiansimon•1h ago
> “High-intensity training reduced fat and maintained lean mass […] though changes were small and not clinically meaningful compared with exercise of lower intensity…”

High intensity does border on leading to injury — just making the wrong move — and you’re back to zero intensity?

baxtr•1h ago
Really depends on how you define high-intensity.

To build muscle, you need to push yourself to a limit. You can reduce the weight and increase the repetitions. This approach is just as effective and lowers the risk of injury.

kakacik•49m ago
This is what I do. When I was beginning with weight training, I followed other's recommendations back then and pushed hard. Had quite often minor issues or injuries in the joints which set me back for weeks or even months, my tendons seem to be my weak spot and it does get worse with age, both limits and recovery.

Lowered the load, increased repetitions and basically nothing for a decade. I can still go almost to the failure, I don't even want to reach it since I don't care about that extra bit. Squats or deadlifts are hard even when not at limits, one feels used body parts for a day or two.

I still add cardio on top of that, its just basic logic of moving around a lot is very good for the body, even if effects are not immediately obvious.

lowdude•46m ago
So, how many reps did you start with and how many do you do nowadays?
iamacyborg•14m ago
> Squats or deadlifts are hard even when not at limits, one feels used body parts for a day or two.

That’s just regular ‘ol DOMS and not a problem.

Tendons tend to respond well to both heavy load or high reps, albeit adaptation in either case is very slow.

sghiassy•35m ago
“though changes were small and not clinically meaningful compared with exercise of lower intensity and considering measurement error”
m3kw9•28m ago
So the the research is inconclusive?
hasudon7171•24m ago
I think this results vary depending on whether or not a person exercises regularly. After just six months of training, older adults who do not exercise regularly may see significant changes, but those who exercise regularly are likely to see only minor changes.
Systemerror7A69•16m ago
I think it's important to note that this study, at least to my understanding, compared cardio training - not weightlifting or resistance training. Participants did 3 weekly sessions of either low intensity, moderate treadmill excercise or HIIT ( 4-min @ 85–95%, 3min 60-70% ).

I get the feeling some commenters here are misunderstanding this as a lot of the discussions seems to center about weightlifting.

Additionally from what I understood the biggest difference was that the HIIT group lost less muscle while fat loss was roughly the same.

javier_e06•13m ago
Some move all their lives and keep adapting their movements as their age. Others did not move much through the lives and when they hit 60s and they start loosing the mobility, doctors suggest for them to move more, if anything. If you never hiked and you start hiking in your 60s for health reasons. Pick up short flat trails.
criddell•28m ago
Maybe with older adults the baseline goal should be to merely maintain or slow the loss of the muscle, mobility, and cardiovascular capacity they already have? It's not realistic for a 50 year old to think they could build muscle year-after-year for the next 30 years.
ryandvm•1h ago
No joke. I go to the gym a couple times a week so that I'll maintain mobility and won't injure myself as I age - unfortunately 80% of my injuries come from the gym.
pjsmith404•1h ago
If most of your injuries come from the gym, I recommend you get a trainer.
mlinhares•49m ago
hahah, so true. Also, there are multiple ways to do high intensity exercising that are very unlikely to injure you, like stationary bikes. High intensity only means going to a very high heart rate, you can do this in any way you like it.
mrweasel•59m ago
80% of my injuries occurred while sleeping, which seems very weird.
busymom0•45m ago
I knew someone who dislocated her shoulder often while sleeping. If I remember right, she's dislocated it 17 times or some ridiculous number.
LoganDark•36m ago
Isn't it easier for it to happen again once it's happened at least once?
swasheck•2m ago
this happens to me quite frequently. i grew up playing years of baseball and my throwing shoulder is a bit loose as it is. combined with the way i fall asleep (on my stomach with my forearm under my pillow) i tend to dislocate or severely strain it pretty regularly
toasty228•33m ago
Lift less weight then, there is no reason to get injured in the gym if you have a normal body, proper form and lift reasonable weight. From an health point of view it's better to squat/deadlift a mere 60kg safely than trying to go for 200kg+ and snap a disk for absolutely no reason. 100% of my injuries are gym related, because I threw my back exactly once, and since then I lift reasonable weights and focus on proper execution/form

Some people believe "high intensity" means lifting as much as possible as fast as possible, I'd say more reps and deliberately slow movements are as intense for the purpose of staying in shape/healthy.

Most body weight exercises are virtually impossible to fuck up to the point of injury, done properly they'll keep you fitter than 99% of the population

nathan_compton•50m ago
There are plenty of high intensity activities with low risk of injury. Rowing and swimming come to mind.

I think the bigger problem is that, as far as I can tell, very few people have the appropriate personality type for high intensity exercise. Most people seem to experience it just as pointless discomfort.

mzhaase•45m ago
This is specifically cardio. High intensity interval training can be safe, for example, air bike, battle ropes, etc. High intensity running does have higher injury risk.
SecretDreams•35m ago
Everyone just needs to play soccer and avoid the 50/50s if you're an adult that wants to be pain free the next day.

I love me some adult coed soccer. And it can be very high intensity intermittently if you feel like it.

agsnu•33m ago
The study is about 70 year olds. I’m not sure it’s a good idea for the average 70 year old to be engaging in contact sports…
philk10•29m ago
they play walking soccer
philk10•30m ago
I avoided - or that was my intention until the game started - the 50/50s but my calf and hamstring still felt the pain the next day Totally worth it though
m3kw9•29m ago
Hurting the ego will likely make you not play the next game
netbioserror•43m ago
Calisthenics is a really easy way to push intensity at basically 0 risk of injury. They're all compound and depending on the variation could require high reps, but between push ups, pull-ups, squats, their numerous variations, and accessory work, I would challenge anyone to actually injure themselves while also being able to push to true technical failure.
torben-friis•32m ago
It is very possible to injure yourself with calisthenics. Shoulder impingement or tendinitis from pullups with too much intensity/bad form for example. Weight is weight.
wiredfool•19m ago
From my son's experience in calisthenics and looking around at the group he sometimes trains with, there are definitely a lot of overload/overuse injuries, at a range from just needing rest to bicep tears.
busymom0•43m ago
In my experience, there's a middle ground. Don't go for 1 to 3 rep maxes. Go for 4-6 rep maxes for a set and then follow it by set to failure in the 8-12 rep range. That gives a good mix of both intensity and volume while still reducing risks of injury as the weights are heavy but not crazy heavy to compromise form.
vmg12•21m ago
You just need to build back up to high intensity training over time by consistently exercising and pushing yourself. Injury comes from pushing yourself too hard too soon. Unless you are approaching 50 (and even then) you can recover most of your fitness from your early 20s.
alistairSH•20m ago
High intensity does border on leading to injury

Where are you getting this? The study was about various intensities of cardio - I didn't see it noted, but I'm guessing the high- and medium-intensity groups were on a treadmill, elliptical, or similar. Pretty small chance of injury for the durations they mention, especially as the subjects were monitored while exercising.

And I'm not really surprised by the study - building lean muscle mass takes resistance training, which wasn't part of the study. The study results appear to be inline with what was common knowledge/experience.

And if you're injuring yourself regularly during weight training or other gym activities, I'd suggest you might hire a good coach/trainer for guidance and programming, because that shouldn't happen either.