68 college students played video games an hour a day for 30 weeks. They got measurably smarter. EEG brain scans confirmed it.
The setup was simple. Half the group played League of Legends, an action game. The other half played Legends of the Three Kingdoms, a strategy card game. Same hours, same schedule, no gaming experience for anyone going in. Both groups improved on attention, working memory, and executive function. The League group's gains were significantly larger in spatial attention and spatial working memory. The benefits were still measurable 10 weeks after the gaming stopped.
None of this is new.
Daphne Bavelier's lab at the University of Geneva has been replicating this finding since the early 2000s. Her 2018 meta-analysis in Psychological Bulletin pulled data from 8,970 participants across 15 years and found the same thing. Action games train attentional control, a brain skill that transfers to other tasks. Strategy games train deliberation, which mostly stays inside the strategy game.
The mechanism is the counterintuitive part. Action games train your brain by giving you no time to think. The brain can't deliberate. League of Legends throws 9 champions, hundreds of minions, dozens of abilities, mana, cooldowns, and map state at you, all updating in milliseconds. The brain learns to perceive faster instead. That perceptual speed transfers to anything else that demands the same skill.
Including surgery.
The 2007 Rosser study in Archives of Surgery found that laparoscopic surgeons who played video games more than 3 hours a week made 37% fewer errors, completed procedures 27% faster, and scored 42% higher on overall performance. The top third of gamers made 47% fewer errors. Laparoscopic surgery is a 2D screen with distorted depth perception, remote-controlled instruments, and multiple data streams updating in real time. The cognitive profile is almost identical to an action video game.
The 10-week persistence is the part that should change how this gets discussed. If the gains were just from practicing the game, they would have disappeared the moment the students stopped playing. They didn't. The 30 weeks rewired the perceptual system, and the rewiring stayed.
This 3 minute breakfast got me to 12% body fat
At 46, I got my abs back and this breakfast is the biggest reason why.
Here's what's in it and why it works:
Vitamin D just got a serious upgrade.
A new study found that taking 2,000 IU of vitamin D3 daily for four years significantly slowed telomere shortening — the biological countdown that accelerates aging and age-related diseases.
Researchers saw clearer protection in adults 50+ compared to placebo. Omega-3s didn’t show the same effect.
It’s not a miracle cure, but it adds real weight to vitamin D’s role in fighting inflammation and supporting healthier aging. Even short daily walks in daylight can help your body produce it naturally.
What’s your take — are you already supplementing with vitamin D, or does this make you want to start?
Managed Agents is the first 'agent in the cloud' API that has the right mix of simplicity and complexity.
Implementation details like how you manage a sandbox are abstracted, but you have a lot of control over the actual execution of the model.
Our run-rate revenue has surpassed $30 billion, up from $9 billion at the end of 2025, as demand for Claude continues to accelerate. This partnership gives us the compute to keep pace.
Read more: https://t.co/XgSjL0And7
Claude controlling @tradingview live — switching symbols, writing Pine Script, batch scanning futures, replay trading, drawing levels. All from the terminal. Still rough edges but the vision is clear.
Breaking news: The CEO who created Claude just published a 38-page letter to all of humanity.
Dario Amodei mapped out exactly which careers will survive AI and which won't.
No hype. No doomsday. Just the coldest, most specific prediction any AI leader has ever made.
But page 29 contains a reasoning framework that transforms AI from what will replace you into your greatest unfair advantage.
Here are 9 prompts from Claude based on Amodei's methodology that will put you years ahead of everyone who didn't read this:
🚨 HOLY SH*T: The most complete Claude Code setup just got open-sourced.
91K+ stars.
It’s called everything-claude-code.
Inside:
→ 28 agents
→ 116 skills
→ 59 commands
→ 15+ hooks
→ 34 rules (6 languages)
→ MCP integrations
→ Built-in security scanner
This is basically a full AI engineering system.
Link 👇