Frances Haugen, a Facebook data scientist, leaked tens of thousands of internal documents to the SEC and Wall Street Journal in September 2021. The documents revealed Facebook's own research showed 13.5% of teen girls said Instagram worsened suicidal thoughts, 17% said it contributed to eating disorders, and 32% said it made body image issues worse. Facebook had studied these effects since at least 2019 but continued to publicly downplay the harm. Haugen testified before Congress that Facebook chose 'profits over safety.'