ADHD and focus on a Mac: take the internet out of reach

Last updated: November 14, 2026

With ADHD, “just don’t open YouTube” rarely works, because the next distraction is always one click away. What helps more is changing your surroundings so the distraction isn’t there. This guide covers what research says, a simple setup for your Mac, and how Vow, a Mac app that turns off your internet until a timer ends, fits in.

Why “just don’t open YouTube” doesn’t work

With ADHD, the problem usually isn’t knowing what to do. It’s doing it at the moment it counts. ADHD researcher Russell Barkley describes ADHD as a problem of doing what you know, not of knowing what to do. His advice is to put help at the “point of performance”: the place and moment where the work happens.^[1]

A browser is the opposite of that. The next video, thread or headline is always one click away, and every click is a new choice to resist. Resisting has a cost too. In one well-known study, just having your own phone on the desk, even switched off and face down, lowered people’s scores on memory and thinking tests. The effect was biggest for the people who leaned on their phones most.^[2]

Screens also pull everyone’s attention around. Psychologist Gloria Mark’s studies from 2016 to 2020 found people stayed on one screen for about 47 seconds on average before switching.^[3] With ADHD, that pull is usually stronger.

So the plan that works best isn’t more willpower. It’s making the distraction impossible for a while.

What research says about screens and ADHD

Be careful with big claims here. This is what the studies actually show:

• Heavy screen use and ADHD symptoms go together, a little. A JAMA study followed 2,587 teenagers for two years. Teens who used more kinds of digital media many times a day were slightly more likely to report new ADHD symptoms later (about 10% higher odds for each extra activity). It shows a link, not proof that screens cause ADHD.^[4]
• Less internet improved attention in a trial. In a 2025 study, 467 adults blocked the internet on their phones for two weeks. 91% got better on at least one of attention, mental health or well-being, and their attention improved by about as much as it normally declines over 10 years of ageing. This study was not about ADHD, and it blocked phones, not computers.^[5]
• No study shows that an internet blocker treats ADHD. Vow is a tool for your surroundings, not a treatment. For diagnosis, medication or therapy, talk to a doctor.

A Mac setup that works with an ADHD brain

1. Pick one small task first. Write it down in one line, like “Write the intro of my essay.” A vague goal is easy to escape.
2. Get what you need before you go offline. Open the PDF, download the slides, save the article. Then nothing sends you back to the browser.
3. Start short. Try 15 to 30 minutes. A short session you finish beats a long one you dread. Grow it later.
4. Keep the time in view. Barkley suggests making time visible, because ADHD makes it hard to feel time passing.^[1] Vow shows how much time is left and when you’ll be back online.
5. Put your phone in another room. In the “brain drain” study, people with their phone in another room did best.^[2]
6. Keep a “look it up later” list. When you need to search something, write it on paper and keep going. Check the list when the session ends.
7. Let a schedule start it for you. Remembering to start is often the hard part. In Vow, click Schedules, then Add Schedule, and pick a time, like weekdays at 9:00 for 2 hours. You decide once.

Why block the whole internet, not just a few sites

Block YouTube, and Reddit fills the gap. Block Reddit, and the news does. A brain that loves new things will always find the next one. Vow doesn’t use a list. It turns off your Mac’s internet, so every browser and app goes quiet at once and there’s nothing new to find.

Vow also has no instant cancel button. If you really need to get online, you can ask to unlock early, but your Mac stays offline for 15 more minutes first. That wait is often enough for the urge to pass. Quitting Vow or restarting your Mac won’t bring the internet back early.

Your Mac still works offline: your files, notes, writing apps and anything saved on your Mac keep working.

What Vow can’t do

• It doesn’t touch your phone. Vow works on your Mac only. Keep your phone in another room, or use Screen Time on it.
• It’s all or nothing. If a task really needs the web, split it: research online first, then go offline to write.
• It isn’t medical care. It can make focus easier. It doesn’t replace a doctor.

For more ways to go offline, including free options built into macOS, read how to block the internet on a Mac.

Questions

Sources

1. Barkley, R. A., with Benton, C. M. (2021). Taking Charge of Adult ADHD (2nd ed.). Guilford Press. guilford.com
2. Ward, A. F., Duke, K., Gneezy, A., & Bos, M. W. (2017). Brain drain: The mere presence of one’s own smartphone reduces available cognitive capacity. Journal of the Association for Consumer Research, 2(2), 140–154. doi.org/10.1086/691462
3. Mark, G. (2023). Attention Span: A Groundbreaking Way to Restore Balance, Happiness and Productivity. Hanover Square Press. Summary in: University of California, “How to sharpen your attention and meet your goals in 2024”. universityofcalifornia.edu
4. Ra, C. K., Cho, J., Stone, M. D., et al. (2018). Association of digital media use with subsequent symptoms of attention-deficit/hyperactivity disorder among adolescents. JAMA, 320(3), 255–263. doi.org/10.1001/jama.2018.8931
5. Castelo, N., Kushlev, K., Ward, A. F., Esterman, M., & Reiner, P. B. (2025). Blocking mobile internet on smartphones improves sustained attention, mental health, and subjective well-being. PNAS Nexus, 4(2), pgaf017. doi.org/10.1093/pnasnexus/pgaf017