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What studies have actually found about short-video feeds. Every record names its source, its study design and its limitations, and keeps the source’s finding apart from our reading of it.

Meta-analysis studies on digital behaviour

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  1. Feeds, feelings, and focus: A systematic review and meta-analysis examining the cognitive and mental health correlates of short-form video use

    Nguyen, L.; Walters, J.; Paul, S. et al.
    Psychological Bulletin, 151(9), 1125–1146

    This study combined the results of 71 earlier studies with nearly 100,000 people. Across them, people who watched more short videos tended to have weaker attention and self-control, and somewhat more stress and anxiety. It found no link with body image or self-esteem. These are links seen across studies; they do not prove that short videos cause the problems.

    Design
    Meta-analysis
    Year
    2025
    Where
    Multiple countries
    Topics
    Attention, Digital behaviour, Mental wellbeing, Youth wellbeing
    Limitations recorded

A study is published here only after its source is identified and verified, its design classified, its finding checked against the original, and its limitations recorded. How we judge evidence