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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.

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  1. Impact of Short-Form Videos on Screentime and Sleep: Evidence from TikTok

    Agarwal, S.; Ananthakrishnan, U. M.
    Management Science (INFORMS)

    Researchers looked at phone records of about 7,000 people in the United States before and after they started using TikTok. Heavy users spent more total time on their phones afterwards, much of it late at night, and went to bed later and slept somewhat less. People who used TikTok lightly showed no change.

    Design
    Other
    Year
    2026
    Where
    United States
    Topics
    Digital behaviour, Sleep
    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