Overview

• The For You feed supplied about 90% of videos people watched, with roughly 10% coming from followed creators.
• Many participants roughly doubled their daily watch time over a six‑month period.
• Behavioral markers such as more sessions per day, faster swipes, and longer total viewing aligned with patterns of compulsive use.
• The Post combined participant logs with metadata scraped from 14.8 million videos because TikTok’s archive lacks key details like watch duration and Not Interested actions.
• TikTok highlighted tools such as screen time limits and feed filters but did not address the study’s specific findings.