What is brain rot, and how to fix it

The short version: brain rot is slang for the dull, scattered feeling that comes from too much trivial online content, especially short videos. Oxford named it Word of the Year for 2024. It is not a medical condition, and your brain is not rotting, but heavy, compulsive short-video use is linked to weaker attention. To fix it, cut the feeds that cause it, read something long every day, sleep enough, and get used to being bored again.

What brain rot means

Oxford University Press defines brain rot as “the supposed deterioration of a person’s mental or intellectual state, especially viewed as the result of overconsumption of material (now particularly online content) considered to be trivial or unchallenging.” It also means the content itself. A clip can be brain rot, and so can an evening spent watching them.

Oxford picked it as the 2024 Word of the Year after a public vote of more than 37,000 people. Its usage rose 230% between 2023 and 2024, mostly through TikTok, where younger users applied it to memes like Skibidi Toilet and “only in Ohio.” A lot of people use the word as a joke about themselves. The joke lands because the feeling is familiar.

The phrase is older than the internet. Oxford traces its first recorded use to Henry David Thoreau’s Walden, published in 1854. Thoreau asked why, while England tried to cure the potato rot, nobody tried to cure the brain-rot, “which prevails so much more widely and fatally.” He was complaining about a taste for simple ideas over hard ones. The worry is old. The feed is new.

What brain rot is not

Brain rot is not a diagnosis. You won’t find it in a medical manual, and a doctor can’t test you for it. Even Oxford’s definition says “supposed.” There is no evidence that watching short videos damages brain tissue, and claims that TikTok “fries your dopamine” go well past what the studies show.

That matters for two reasons. First, it means the problem is a habit, and habits change. Second, real trouble with focus, memory or mood can have other causes, like poor sleep, stress, depression or ADHD. If your concentration has dropped a lot and stays low even when you cut back, talk to a doctor instead of blaming your phone.

What the research says about short videos and attention

The largest review so far was published in Psychological Bulletin in 2025. It pooled data from 98,299 people across 71 studies. More short-video use went with poorer cognition overall (a moderate correlation, r = −.34), and the strongest links were with attention (r = −.38) and inhibitory control, the ability to stop yourself doing something (r = −.41). The pattern held for young people and adults, and across TikTok, Reels and Shorts.

Two caveats. Most of the studies were cross-sectional, a snapshot at one point in time, so they can’t show that the videos cause the problem. People who already struggle to focus may also be drawn to short videos. And studies that measured compulsive use, with addiction scales, found stronger links than studies that only counted minutes. How you watch seems to matter more than how long.

One small experiment did test cause and effect for a single skill. In a 2023 study with 60 people, participants had to remember to do a planned action later, a skill called prospective memory, while being interrupted. Those who spent the breaks on TikTok did significantly worse. Those who used Twitter, YouTube or did nothing showed no such drop. The authors put it down to the mix of short videos and constant switching. It was one lab task with a small sample, so treat it as a clue, not proof.

What happened when people took the feed away

A 2025 randomized trial in PNAS Nexus blocked all mobile internet on people’s phones for two weeks, while calls and texts still worked. After the block, participants did better on an objective test of sustained attention, by about as much as 10 years of age-related decline. Mental health and well-being improved too, and 91% of participants improved on at least one of the three.

The catch is how hard it was. Of the 467 people who signed up, only 119 kept the block on for at least 10 of the 14 days. Participants also knew the study was about smartphones and well-being, which can color self-reported results. Still, it is one of the better pieces of evidence that cutting back helps, and it suggests the effect shows up within weeks.

How to fix brain rot

1. Cut short-form video first. The research points at fast, endless feeds, so start there. Delete TikTok, or hide Reels and Shorts, or lock those apps. Keep the apps you use for messages and work. Our guide on how to stop doomscrolling and the one on reducing screen time on Android cover the settings.
2. Read something long every day. A book asks you to hold one thread for half an hour. That is the opposite of a feed, and it gets easier with practice. Start with 10 pages, or 15 minutes, of a book you want to read, not one you think you should.
3. Sleep enough. The CDC recommends 7 or more hours for adults and 8 to 10 for teens, and says good sleep helps attention and memory. Late-night scrolling is one of the main ways sleep gets cut short. Our guide on stopping scrolling before bed has a wind-down routine.
4. Practice being bored. Most people find sitting with their own thoughts harder than they expect. In a 2014 study in Science, participants were left alone in a room for 15 minutes with nothing but a button that gave them a mild electric shock. 12 men and 6 women out of 42 pressed it at least once. Waiting in line, walking or riding a bus without the phone is how you build that tolerance back.
5. Do one thing at a time. The prospective memory study pointed at switching as the problem. Close the feed while you work, watch one long video instead of 40 short ones, and finish a task before you check your phone.

If you want to know why the pull is so strong in the first place, read why you can’t stop scrolling and how to stop mindless scrolling.

A 30-day plan

• Days 1–7, see it. Check your screen time each evening and write down the number for your top two apps. Don’t change anything else yet. Pick a book.
• Days 8–14, cut the worst one. Delete or lock the app that eats the most time. Read 10 pages a day, at the same time each day. Phone off the bed at night.
• Days 15–21, add friction everywhere else. Log out of the second app, move it off your home screen, or lock it until you’ve read. Raise the goal to 15 or 20 pages. Leave the phone behind on one walk or errand each day.
• Days 22–30, keep what works. Compare your screen time with week one. Decide which apps come back, and on what terms. Most people find they don’t miss the ones they cut.

If you slip, start again the next day. One bad evening doesn’t undo two good weeks.

Where FirstPage fits

You don’t need an app for most of this. Android’s Digital Wellbeing can set daily limits on any app, a phone in another room works, and a paper book has no feed at all. If those are enough for you, use them.

FirstPage is for people who keep breaking their own limits. It’s a reading app blocker for Android. You pick the apps to lock, like TikTok, Instagram, YouTube or Reddit, and set a daily reading goal in pages or minutes. Until you’ve read today’s goal, opening a locked app shows how many pages are left and a button back to your book. Stats show your reading time next to your time on social apps, day by day, which makes the first week of the plan above easy.

There is also a brain mascot that fits this topic a little too well. It earns XP as you read and climbs from Zombie and Foggy up through Natural, Sharp and Radiant. It loses XP for a missed day or an early unlock. It’s a game, not a brain scan, but it makes the habit visible. You can read your own EPUB and PDF files or free classics from Project Gutenberg. The free version covers two locked apps and one book. If you’re comparing options, see our list of reading app blockers.

Sources

• Oxford University Press, “Brain rot” named Oxford Word of the Year 2024.
• Nguyen et al., Psychological Bulletin, 2025. Short-form video use and cognitive and mental health: a meta-analysis of 71 studies; limitations summarized by PsyPost.
• Chiossi et al., CHI 2023. Short-form videos degrade our capacity to retain intentions (preprint).
• Castelo et al., PNAS Nexus, 2025. Blocking mobile internet on smartphones improves sustained attention, mental health and well-being.
• Wilson et al., Science, 2014. Just think: the challenges of the disengaged mind; figures from Science News Explores.
• CDC, About sleep.

This guide is general information, not medical advice. If trouble with focus, memory or mood lasts, talk to a doctor.