Prime Time set up TikTok accounts with the users' age set to 13 years old.

We did not search for topics, 'like’ or comment on videos, or engage with content in any similar way.

We watched the videos shown by TikTok on the ‘For You’ feed, and when shown videos related to topics like parental relationships, loneliness, or feelings of isolation appeared, we watched them twice.

Within minutes, the accounts which TikTok understood to be controlled by 13-year-old users, were into a mental health content rabbit hole.
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