Does TikTok Cause 'Brain Rot'? A Study's Controversial Findings and Limitations

A recent study from Tianjin Normal University in China claims that excessive short-video consumption (like TikTok) alters brain structure, leading to so-called 'brain rot'. The research found increased gray matter in specific brain regions and enhanced brain activity synchronization among heavy users. However, the study has significant limitations: its cross-sectional design prevents establishing causality; its whole-brain search for differences increases the risk of false positives; and its interpretation of brain activity synchronization is controversial. Experts point out that 'short-video addiction' isn't a formal clinical diagnosis, and the findings can't be simply interpreted as TikTok causing brain damage. While excessive consumption of frivolous videos can be problematic, focusing on healthier media habits is more productive than worrying about brain changes.
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