Is Doomscrolling Bad for You? What It Does to Your Mood, Sleep and Focus

I'm not a doctor. I'm the person who built YourPriority after spending almost 6 to 8 hours a day on my phone. This post summarises published research on doomscrolling, mood, sleep and attention, with a link to every study, and it says clearly what the research shows and what it doesn't. If scrolling is part of feeling very low or anxious, please talk to a doctor or a mental health professional.

Does doomscrolling make you anxious or sad?

In the short term, yes, it can. Several experiments show that bad news changes your mood quickly:

• A few minutes is enough. In two 2021 experiments with about 900 people in total, just 2 to 4 minutes of COVID news on Twitter or YouTube lowered people's mood immediately. Posts and videos about people doing kind things didn't have that effect.
• Bad news spreads to your own worries. In a 1997 experiment, people who watched a 14-minute negative news bulletin felt more anxious and sad. They also worried more about an unrelated problem in their own life.
• More hours, more stress. After the 2013 Boston Marathon bombing, a survey of 4,675 adults found that people who followed the news for six or more hours a day reported more acute stress than people who were directly exposed to the bombing.

Over longer periods, the evidence is mostly about links. In a 2023 study of three groups in Turkey, people who doomscrolled more reported more psychological distress and lower well-being. A 2024 study in Iran and the US linked doomscrolling to more "existential anxiety", worry about life and meaning. And a 2024 review of 182 studies found small but real links between social media use and depression and anxiety. "Problematic" use was also linked to depression, anxiety and sleep problems.

The honest caution: these studies can't show which comes first. Scrolling may make people anxious, and anxious people may also scroll more. It may work both ways.

Is doomscrolling bad for your sleep?

It's one of the clearest problems. In a 2025 study of 45,202 students in Norway, each extra hour of screen use after going to bed was linked to 24 minutes less sleep and 59% higher odds of insomnia symptoms. Social media wasn't worse than other screen activities. The main problem was time in bed on a screen.

People notice this themselves. In a 2026 Pew Research survey, 41% of American adults said their phone hurts their sleep. Among adults under 30, it was 62%. If this sounds like you, read How to Stop Doomscrolling at Night.

Does doomscrolling hurt your attention and focus?

Heavy use of short videos, a feed many people scroll for hours, is linked to weaker attention. A 2025 review in Psychological Bulletin combined 71 studies with 98,299 people. More short-video use was associated with poorer thinking skills overall, and the strongest links were with attention and with inhibitory control, the ability to stop yourself from acting on an impulse.

A lab study found something similar. In a 2023 experiment with 60 people, watching TikTok-style short videos made people worse at remembering to do a planned task a few minutes later. Watching Twitter or YouTube, or doing nothing, didn't.

Again, most of this research shows links. But it matches what many people describe: after a long scroll, it's harder to read a page or focus on one task.

Does doomscrolling cause brain fog, memory loss or dementia?

People search for this a lot, so here's a clear answer: there's no study showing that doomscrolling causes memory loss, brain fog or dementia. "Brain fog" isn't something these studies measure.

What exists is smaller and shorter-term:

• Fast-switching feeds can hurt attention and memory in the moment, like the 2023 experiment above.
• A 2020 study in Nature found that people who switch between lots of media at once had more attention lapses and forgot more. That's a link, not a cause.
• For dementia, research on older adults found the opposite for general technology use. A 2025 review of 57 studies with 411,430 adults over 50 linked using digital technology to a lower risk of cognitive impairment. A large UK study found more TV time was linked to higher dementia risk, but more computer time to lower risk.

So far, there's no evidence of lasting brain damage. But lost sleep and ongoing stress aren't good for anyone's memory or focus, and doomscrolling can add to both. That last point is a reasonable conclusion from the research, not a study result.

What is "brain rot", and is it reversible?

"Brain rot" was Oxford's Word of the Year for 2024. Oxford defines it 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." Note the word "supposed": it's a popular phrase, not a medical condition. Its use grew by 230% from 2023 to 2024.

The better news is that the attention problems people call "brain rot" seem to improve when people use their phones less:

• In a 2025 trial, 467 adults were randomly split into two groups. One group blocked mobile internet on their phones for two weeks, keeping calls and texts, while the other waited and then did the same. Blocking improved sustained attention, mental health and well-being, and 91% of people improved on at least one of these. Only about a quarter followed the rules fully, and there was no long-term follow-up, but the results are encouraging.
• In a 2018 University of Pennsylvania study, students who limited Facebook, Instagram and Snapchat to 10 minutes each a day for three weeks reported less loneliness and depression than students who didn't.

Not every "digital detox" works. A 2021 review of 21 studies found mixed results: some helped, some didn't.

Signs your scrolling has become a problem

This isn't a medical test, just a simple check. Your scrolling may be too much if:

• you often scroll much longer than you planned;
• you feel worse, more anxious or more tired afterwards;
• it regularly costs you sleep;
• you pick up your phone automatically whenever you're bored or waiting;
• you have tried to use your phone less and couldn't. You're not alone: in the 2026 Pew survey, 45% of adults had tried to use their phone less in the past year, and only a quarter of them said they were extremely or very successful.

What can I do about it?

• Protect your sleep first. Charge your phone outside the bedroom and lock your scrolling apps at night.
• Put a stopping point back into the feed. A short automatic break, or a limit you can't easily skip, puts a stopping point back. Here's why it's so hard to stop, and what helps.
• Limit, don't necessarily quit. The Pennsylvania study used limits, not a ban, and still found benefits.
• Replace the habit. Have something ready for the moments you usually scroll. Here are 30 ideas that take five minutes.