The Washington Post analyzed TikTok usage, finding what topics the algorithm nudges users towards more:
TikTok’s algorithm favors mental health content over many other topics, including politics, cats and Taylor Swift, according to a Washington Post analysis of nearly 900 U.S. TikTok users who shared their viewing histories. The analysis found that mental health content is “stickier” than many other videos: It’s easier to spawn more of it after watching with a video, and harder to get it out of your feed afterward.


