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Description

TikTok challenges are a prominent feature of adolescent online life, and a growing subset promote medically hazardous behaviors (for example, intoxication, self‑injury) increasingly encountered in emergency and toxicology practice. How TikTok's visual culture, social networks, and algorithms make these risky challenges appealing and viral among youth remains poorly characterized. Our objective was to (1) identify motives that drive adolescents and young adults to participate in hazardous TikTok challenges despite obvious risks, and (2) describe social‑network mechanisms that appear to accelerate the spread of these challenges.

A qualitative, reflexive thematic analysis of TikTok videos depicting harmful or potentially harmful challenges was conducted. Videos were identified via TikTok hashtag searches supplemented by media, regulatory, and toxicology sources; eligible user‑generated videos visually or verbally depicted challenge participation and contained audio. Transcripts and field notes captured spoken content, on‑screen text, music/voice‑overs, visible social context, and basic engagement indicators. Two independent coders performed inductive coding focused on expressed/implied motives, portrayals of risk and reward, and visual/structural markers of algorithmic or network amplification; codes were iteratively organized into themes supported by multiple videos.

Forty-five videos met the inclusion criteria; 38 (84%) depicted highly prevalent youth challenges (>30,000 views). Most participants appeared to be adolescents or young adults; 34% were identifiable as teens or preteens, and 53% as male. Thirteen themes were described that motivated participation, including social display and group belonging, visibility and algorithmic reward, and the normalization/minimization of risk. Network-level themes indicated that social platforms amplified the spread by transforming individual risky acts into visible, repeatedly imitated norms through high-speed distribution, engagement-based ranking, social proof (views/likes), and continuous, network-mediated peer pressure. No challenge-specific harm reduction warnings or education from TikTok were observed.

Hazardous TikTok challenges appear compelling to adolescents because they tightly couple developmental motives (belonging, identity exploration, sensation seeking, FOMO) with algorithmically rewarded visibility and peer approval. Findings support the need for anticipatory guidance in clinical encounters, stronger platform‑level safeguards around high‑risk challenge content, and media‑literacy efforts that help youth and families recognize how design and social metrics can override individual risk assessment.

Publication Date

5-8-2026

Disciplines

Emergency Medicine

Comments

2026 Research Day Corewell Health West, Grand Rapids, MI, May 8, 2026. Abstract 1896

Understanding the Appeal and Amplification of Hazardous TikTok Challenges: A Thematic Analysis

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