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What Is Brain Rot?

“Brain rot” is slang for the foggy, scattered feeling that comes from too much low-effort online content, and kids also use it for the strange, nonsensical memes that content is full of. Oxford University Press named it the 2024 Word of the Year. It isn’t a medical diagnosis, but the research behind the worry is real. Here’s what brain rot means, what studies show, and what parents can do.

By the CITA Editorial TeamUpdated October 5, 20265 min read

Fast Facts About Brain Rot

  • Oxford defines brain rot as “the supposed deterioration of a person’s mental or intellectual state,” especially from overconsuming trivial or unchallenging online content.[1]
  • Use of the term rose 230% between 2023 and 2024. Its first recorded use was in Henry David Thoreau’s Walden in 1854.[1]
  • A 2025 review of 71 studies and 98,299 people linked heavier short-form video use with poorer attention and self-control.[2]
  • In a 2025 trial, adults who blocked mobile internet on their phones for two weeks improved their attention, mental health and well-being.[3]
  • Brain rot isn’t a medical condition, and the research shows links, not proof that short videos damage the brain.[2]

What Does Brain Rot Mean?

Oxford’s full definition: “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.”[1] The word “supposed” matters. Brain rot describes a feeling and a worry, not a measured condition.

Kids use the word in two ways. Some say a video or meme is brain rot, meaning it’s absurd or pointless. Others say they have brain rot after scrolling for hours, meaning they feel foggy, restless or unable to focus. Both uses point at the same thing: endless feeds of short, fast content.

The phrase is older than the internet. In Walden (1854), Thoreau asked whether anyone would try to “cure the brain-rot,” which he saw as worse than England’s potato rot.[1] More than 37,000 people voted on Oxford’s 2024 shortlist before its experts picked the winner.[1]

Is Brain Rot Real?

The feeling is real, and so are the patterns researchers have found, though not the idea that the brain is literally rotting.

  • Short videos and attention: a 2025 meta-analysis in Psychological Bulletin pooled 71 studies covering 98,299 people. Heavier use of short-form video, such as TikTok, Instagram Reels and YouTube Shorts, was linked to poorer attention and inhibitory control, the ability to stop yourself from acting on an impulse. It was also linked, more weakly, to more stress and anxiety. The results held for young people and adults.[2]
  • Taking the phone’s internet away helps: in a 2025 randomized trial published in PNAS Nexus, adults who blocked all mobile internet on their phones for two weeks improved on mental health, well-being and an objective attention test. 91% improved on at least one of these. They spent more time with people in person, exercising and outdoors.[3]

Most short-video studies are snapshots, so they can’t show whether scrolling hurts attention or whether people who struggle to focus scroll more. The meta-analysis authors also note that few studies have looked beyond attention and self-control.[2] And short videos weren’t linked to body image or self-esteem in that review.[2]

Signs of Too Much Scrolling

These are everyday signs that a feed is taking over, not symptoms of a disorder:

  • Trouble sticking with longer tasks, like homework, books or a full movie.
  • Reaching for the phone automatically, even mid-conversation.
  • Losing track of time while scrolling.
  • Feeling restless, foggy or irritable after a long session.
  • Staying up late to keep watching.

Our free Brain Rot Test takes two minutes and gives a score with one plain next step. Teens can take it themselves, or you can take it together.

What Parents Can Do About Brain Rot

  1. Talk without shame. Ask your child what brain rot means to them. Most kids already know when scrolling stops being fun.
  2. Target the endless feeds. The American Academy of Pediatrics (AAP) warns that features encouraging endless scrolling can interfere with sleep, which in turn affects mood and attention.[4] Turn off autoplay, and use time limits for short-video apps.
  3. Use the built-in limits. Parents of supervised teens can limit time scrolling YouTube Shorts.[5] On iPhone, Time Allowances can cap time on entertainment and social apps. See our YouTube parental controls and iPhone parental controls guides.
  4. Make phone-free times. Meals, homework and the hour before bed are good places to start. In the 2025 trial, time away from mobile internet went to in-person time, exercise and nature.[3]
  5. Replace the scroll. Long-form activities, like a book, a building project or a sport, give attention a workout that feeds don’t.
  6. Model it. “How parents use media shapes how kids and teens use media,” the AAP says, so set your own boundaries too.[4] The AAP’s Family Media Plan tool can cover the whole family.[6]

For more on breaking the habit, see how to stop doomscrolling.

Take the 2-Minute Screen Time Check

See how screens fit into your child’s day, from bedtime to family meals, and get a plan for what to change first. Start the Screen Time Check

Frequently Asked Questions

What does brain rot mean?

It’s slang for a supposed decline in focus or thinking from too much trivial online content, and kids also use it for absurd memes. Oxford named it the 2024 Word of the Year.[1]

Where did the term brain rot come from?

Its first recorded use was in Henry David Thoreau’s 1854 book Walden.[1]

Is brain rot a real medical condition?

No. It isn’t a diagnosis. But research links heavier short-form video use with poorer attention and self-control.[2]

Can you reverse brain rot?

In a 2025 trial, adults who blocked mobile internet on their phones for two weeks improved their attention and well-being, which suggests the effects aren’t permanent.[3]

What is the Brain Rot Test?

It’s our free two-minute self-check on scrolling, focus and control. You get a score and one next step. Take the Brain Rot Test.

Sources

  1. Oxford University Press. (2024, December 2). ‘Brain rot’ named Oxford Word of the Year 2024.
  2. Nguyen, L., Walters, J., Paul, S., Monreal Ijurco, S., Rainey, G. E., Parekh, N., Blair, G., & Darrah, M. (2025). Feeds, feelings, and focus: A systematic review and meta-analysis examining the cognitive and mental health correlates of short-form video use. Psychological Bulletin, 151(9), 1125–1146.
  3. 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.
  4. Radesky, J. (2026, January 20). Understanding the new AAP digital media guidelines for screen time and social media. American Academy of Pediatrics.
  5. Google. (n.d.). Supervised teen account. YouTube Help. Accessed October 4, 2026.
  6. American Academy of Pediatrics. (n.d.). Family Media Plan. HealthyChildren.org. Accessed October 4, 2026.

About this information

TikTok, Instagram, YouTube and other product names mentioned on this page are trademarks or registered trademarks of their respective owners. We are not affiliated with, sponsored by or endorsed by those companies, and we use their names only to identify the products we discuss. This information reflects our understanding, based on public sources, as of the last update to this page.

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