Frequency of health information exposure under algorithmic recommendation directly and negatively predicts youth sleep quality, and also indirectly impairs sleep through a serial mediation pathway whereby greater exposure intensifies information anxiety, which in turn undermines self-efficacy.
Health information exposure frequency directly and negatively predicts sleep quality in youth aged 18–35.
Information anxiety independently mediates the relationship between health information exposure frequency and sleep quality.
Self-efficacy independently mediates the relationship between health information exposure frequency and sleep quality.
Information anxiety and self-efficacy form a serial 'emotional-cognitive' mediation pathway linking health information exposure frequency to impaired sleep quality.
Health information exposure frequency exerts multiple indirect effects on sleep quality beyond its direct negative effect.
This research suggests that how often young people (ages 18–35) are exposed to health information through algorithmically curated social media and digital platforms has a meaningful negative impact on their sleep quality. The more frequently someone encounters health-related content pushed by recommendation algorithms, the worse their sleep tends to be — not only directly, but through a chain of psychological effects. Specifically, heavy exposure to health information tends to make people more anxious about that information, and that anxiety then erodes their confidence in their ability to manage their own health (self-efficacy), which in turn leads to poorer sleep. The study found three distinct psychological pathways through which exposure harms sleep: anxiety alone, reduced self-efficacy alone, and a combined chain where anxiety leads to reduced self-efficacy which then harms sleep. This 'emotional-cognitive' chain is particularly notable because it shows that the problem is not just emotional (feeling anxious) but also cognitive (losing confidence in one's ability to act on health information), and these two factors compound each other. This research suggests that interventions to improve youth sleep health in the digital age may need to address not just how much health content platforms serve to users, but also how they serve it — since the current algorithmic approach appears to foster anxiety and undermine users' sense of personal health agency. The findings point toward potential value in improving digital health literacy, reforming platform recommendation algorithms, and designing public health campaigns that help young people process health information without becoming overwhelmed by it.
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Upload Your LabsChen S, Cao J, Ye L, Wei D. (2026). The impact of health information exposure frequency on youth sleep quality under algorithmic recommendation: a serial mediation role of information anxiety and self-efficacy.. Frontiers in public health. https://doi.org/10.3389/fpubh.2026.1818140