TikTok internal documents revealed in a 2024 lawsuit reportedly show the platform's research found users become addicted after 260 videos (roughly 35 minutes at 8 seconds per video) and documented cognitive harms including memory loss and increased anxiety. The core lawsuit filing exists and multiple state attorneys general have sued TikTok on addiction grounds, but the specific internal research findings and the exact '260 videos' metric cannot be independently confirmed outside the leaked documents themselves. The article's comparison to tobacco industry tactics is analytical commentary, not a factual claim. Without access to the full litigation documents or TikTok's response, it's unclear what's proven versus what's alleged — standard caution for claims from sealed or redacted court records.