Two weeks without mobile internet restored sustained attention to levels typical of someone ten years younger.
A recent preregistered randomized controlled trial published in PNAS Nexus demonstrates that simply disabling mobile internet access on smartphones—while retaining calls, texts, and computer-based browsing—can yield substantial psychological benefits in as little as two weeks.
Participants who blocked mobile data showed marked enhancements in sustained attention (with objective test performance improving to levels comparable to reversing a decade of typical age-related decline), mental health (including reductions in depression and anxiety symptoms exceeding those often seen with antidepressants), and subjective well-being (higher life satisfaction and positive affect). Notably, 91% of participants improved in at least one of these domains.
The key insight is that the intervention targets the unique "always-available" connectivity of smartphones, which drives constant interruptions and fragmented focus. Without this mobile tether, individuals reported reallocating time toward in-person socializing, exercise, and nature—activities that mediated much of the gains.
Although not all cognitive functions were affected equally, and full compliance varied, even partial adherence produced meaningful benefits. This evidence underscores how pervasive mobile connectivity may quietly erode mental clarity and mood, making targeted digital breaks a practical strategy for reclaiming focus in a hyper-connected era.
[Castelo, N., & Kushlev, K. (2025). Blocking mobile internet on smartphones improves sustained attention, mental health, and subjective well-being. PNAS Nexus, 4(2), pgaf017]
How @MedPlus101 (MedPlus) Diagnostics (Gachibowli) scammed us out of thousands — and why you should know before booking any test @PeopleHyderabad https://t.co/vNnHB6Bl9V
If you want to become good at system design, then learn these 12 case studies (not kidding):
1 How ChatGPT Apps Work:
↳ https://t.co/BJTYYnAwO1
2 How YouTube Works:
↳ https://t.co/kHk3g6jz6t
3 How Google Docs Works:
↳ https://t.co/W57IkAjXpT
4 How Kafka Works:
↳ https://t.co/8rOy9KgCMo
5 How WhatsApp Works:
↳ https://t.co/VScq8QwHMr
6 How Airbnb Works:
↳ https://t.co/Bi5SAjfv5S
7 How Spotify Works:
↳ https://t.co/BxrH3oHIFS
8 How Slack Works:
↳ https://t.co/eIo29uOQOJ
9 How Reddit Works:
↳ https://t.co/o6Pw2hhj3T
10 How Bluesky Works:
↳ https://t.co/2rLYlRlky0
11 How Twitter Timeline Works:
↳ https://t.co/pF2RYmPaIG
12 How Uber Computes ETA:
↳ https://t.co/hw1hYJqQmj
What else should make this list?
——
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@CommissionrGHMC GHMC did not migrate my mobile number correctly from CDMA, and I requested update. The update has been in pending state for over 10 days now. It shows the message "The Mobile Number approval is already pending at DC.". Please help me with this for me to pay tax.
Last quarter I rolled out Microsoft Copilot to 4,000 employees.
$30 per seat per month.
$1.4 million annually.
I called it "digital transformation."
The board loved that phrase.
They approved it in eleven minutes.
No one asked what it would actually do.
Including me.
I told everyone it would "10x productivity."
That's not a real number.
But it sounds like one.
HR asked how we'd measure the 10x.
I said we'd "leverage analytics dashboards."
They stopped asking.
Three months later I checked the usage reports.
47 people had opened it.
12 had used it more than once.
One of them was me.
I used it to summarize an email I could have read in 30 seconds.
It took 45 seconds.
Plus the time it took to fix the hallucinations.
But I called it a "pilot success."
Success means the pilot didn't visibly fail.
The CFO asked about ROI.
I showed him a graph.
The graph went up and to the right.
It measured "AI enablement."
I made that metric up.
He nodded approvingly.
We're "AI-enabled" now.
I don't know what that means.
But it's in our investor deck.
A senior developer asked why we didn't use Claude or ChatGPT.
I said we needed "enterprise-grade security."
He asked what that meant.
I said "compliance."
He asked which compliance.
I said "all of them."
He looked skeptical.
I scheduled him for a "career development conversation."
He stopped asking questions.
Microsoft sent a case study team.
They wanted to feature us as a success story.
I told them we "saved 40,000 hours."
I calculated that number by multiplying employees by a number I made up.
They didn't verify it.
They never do.
Now we're on Microsoft's website.
"Global enterprise achieves 40,000 hours of productivity gains with Copilot."
The CEO shared it on LinkedIn.
He got 3,000 likes.
He's never used Copilot.
None of the executives have.
We have an exemption.
"Strategic focus requires minimal digital distraction."
I wrote that policy.
The licenses renew next month.
I'm requesting an expansion.
5,000 more seats.
We haven't used the first 4,000.
But this time we'll "drive adoption."
Adoption means mandatory training.
Training means a 45-minute webinar no one watches.
But completion will be tracked.
Completion is a metric.
Metrics go in dashboards.
Dashboards go in board presentations.
Board presentations get me promoted.
I'll be SVP by Q3.
I still don't know what Copilot does.
But I know what it's for.
It's for showing we're "investing in AI."
Investment means spending.
Spending means commitment.
Commitment means we're serious about the future.
The future is whatever I say it is.
As long as the graph goes up and to the right.
@ncbn@naralokesh@PawanKalyan@ysjagan
ఏపీ ప్రభుత్వంపై వెంకయ్య నాయుడు ఘాటు వ్యాఖ్యలు:
మహిళలకు ఉచిత బస్సు వల్ల ప్రయోజనం ఏంటని ప్రశ్న
విద్య, వైద్యంపై ఖర్చు చేయాలి కానీ..ఉచితాలు అలవాటు చేయకూడదు
విద్యతో పేదవాడు సంపన్నుడయ్యే అవకాశాలు ఉన్నాయి
వైద్యం ప్రతి మనిషికి అవసరమైంది.
@CityOfFriscoTx Have you noticed what some neighbors (#Lexington, #Arbors at Willowbay, and #Sorano Estates) are leaving behind after walking their dogs in Yukka Ridge Park? Please do something about it.
Outrageous! A passenger filed an online complaint about being overcharged by catering staff on 14609, Hemkunt express. Just hours later, he was brutally beaten by the pantry staff, simply for daring to raise a complaint!
Today's incident.
@swapnajourno
Deeply disappointed by your biased interview with singer Pravasthi. Journalism should question, not corner. No interviewer has the right to suppress someone's independence or moral voice. Respect n fairness are non-negotiable. #RespectArtists#JournalismEthics