Short-form video and your focus
Checked against 1 peer-reviewed source, most recently on 26 September 2026.
You are probably watching this on a feed. The question people ask is whether short videos shrink your attention span. The research asks something narrower. When it looked at how long people watched, the link with thinking was weak. The stronger pattern was with the hard-to-stop kind of scrolling - past the point you meant to quit - and people who scored high on that rated their own attention lower. Nobody has shown which causes which. But the reflex is the part you can change today.
The one honest fix
Make short videos a choice, not a reflex: keep them closed for your next study or work block, then open them afterwards, on purpose.
What the evidence says
In five studies pooled in a systematic review and meta-analysis, people who scored higher on questionnaires of compulsive or excessive short-form video use reported poorer attention on self-rated attention questionnaires (pooled correlation r = -0.38, 95% CI -0.52 to -0.22)
Limitations & how to read this number
This is a correlation from studies that measured everything at one point in time, so it cannot say which comes first: short videos may pull attention away, or people who already find it hard to concentrate may be the ones who find it hardest to stop scrolling. It is about a particular pattern - scoring high on questionnaires about compulsive, hard-to-stop use - and not about how many minutes people watched. Attention here means how people rated their own attention, not a test of it, and because both sides were questionnaires filled in by the same people at the same time, part of the link may reflect how people see themselves. All five studies were carried out in China, in teenagers and young adults, and the studies behind this figure disagreed with each other a good deal.
SourceNguyen L et al. (2025) · Psychological Bulletin · 10.1037/bul0000498
In the same review, when short-form video use was measured as plain time spent, its link with poorer cognition was weaker (pooled r = -0.20, 95% CI -0.31 to -0.09, four studies) than when it was measured with compulsive-use scales (r = -0.37, 95% CI -0.43 to -0.30, nine studies)
Limitations & how to read this number
This compares groups of studies that measured use in different ways, not the same people measured both ways, so it is a pattern across the research rather than a controlled comparison. It rests on only four studies for time spent, and those mostly measured memory, language or reasoning, while the compulsive-use studies mostly measured self-rated attention and self-control - so part of the difference may come from what was measured rather than how use was measured. In one of the four time-spent studies the review's figure averages a time-spent result with a compulsive-use result, which if anything makes time spent look more strongly linked than it was. And like the rest of this research it is correlational: it cannot show that time on short videos, or the compulsive pattern, causes any of it.
SourceNguyen L et al. (2025) · Psychological Bulletin · 10.1037/bul0000498
How to actually do it
Pick the next block of focused time you already have - a study session, an hour of work, a piece of reading - and keep short videos closed until it ends. Then, if you want to watch, open them afterwards as a choice rather than a reflex. The point is not to quit or to count minutes: the research linked poorer self-rated attention to the compulsive, hard-to-stop pattern of use, and found only a weak link between plain time spent and thinking in general. Be clear about what this is. No study has yet tested whether a scroll-free focus block changes attention. It is a simple way to keep the pattern the research measured out of the time you most need to concentrate.
Supporting findings (1)
Across all fourteen studies of cognition in the review, higher short-form video engagement was associated with poorer cognition overall (pooled r = -0.34, 95% CI -0.42 to -0.26), and the association was similar in studies of young people (r = -0.36) and of adults (r = -0.32)
This combines very different measures of both sides - different ways of measuring use, and different aspects of thinking, most of them self-rated - and the studies disagreed with each other strongly. Most of these studies measured use with questionnaires about compulsive use rather than time spent. All of them were carried out in China. It is a correlation, and cannot show which way the relationship runs.
SourceNguyen L et al. (2025) · Psychological Bulletin · 10.1037/bul0000498
Go deeper
Open what you care about
What was actually measured
The review behind this page pooled studies of short-form video - TikTok, Douyin and short-video apps in general - and thinking or mental health. For attention, all five studies measured use with questionnaires about compulsive or excessive watching, the kind that ask whether you keep scrolling longer than intended or feel pulled back to the app. Attention was measured the same way: people rated their own attention. So the finding is that people who score higher on compulsive use tend to rate their attention lower. It is not a test showing that watching lowers anyone's score on an attention task.
Time spent versus hard to stop
The review measured use in several ways, and that turned out to matter. Across studies of thinking and memory, the link was stronger when use was measured as compulsive, hard-to-stop scrolling than when it was measured as plain time spent. Time spent was still linked, but weakly. The authors say themselves that the associations may reflect experiences at the more problematic end of use. That is why this page talks about the reflex rather than the minutes.
Which way does it run?
Nobody knows yet. Almost every study measured people once, so a person who already finds it hard to concentrate, or who is anxious or stressed, may be exactly the person who finds it hardest to stop scrolling - rather than the scrolling doing the damage. The review's authors say directly that directionality cannot be inferred from these studies, and call for experiments and long-term studies that follow people over time.
Who was studied
All of the studies of thinking in this review came from China, and the attention studies were all in teenagers and young adults. Across the studies of thinking, the pattern was similar for young people and for adults, and the review found no clear difference between TikTok and short videos in general, though only two of those studies were about TikTok specifically. The studies disagreed with each other a great deal about how strong the link is, which is one more reason this page gives a direction rather than a size you should expect in yourself.
Questions people ask
Does watching short videos damage your attention span?
That has not been shown. The research finds a link - people who score higher on compulsive, hard-to-stop use rate their own attention lower - but the studies measured people at one moment, so they cannot tell whether the scrolling affects attention or whether people who already struggle to focus scroll more. The link with plain time spent was weaker.
Is this about attention disorders?
No. These studies were of school and university students and other general groups, not patients, and none of them diagnosed anyone: attention was scored on questionnaires people filled in about themselves, and the compulsive-use questionnaires are not diagnoses either. Nothing on this page is about diagnosing or treating any condition. If concentration problems are affecting your life, that is a conversation for a doctor, not a scrolling rule.
Sources
- Nguyen L et al. (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. Meta-analysis of cross-sectional studies. doi:10.1037/bul0000498
Published 27 September 2026 · Evidence last verified 26 September 2026 · adversarial fact-check + human science gate — how we check.
Corrections are published openly on the corrections page. Educational content, not medical advice — talk to a professional about your own situation.