CeCe Neltner, a young woman whose struggle with an eating disorder was exacerbated by harmful Instagram algorithms, shares her harrowing journey. In contrast, Keira MacDuff, a teen whose chronic illness went undiagnosed for years, credits TikTok with leading her to a life-changing diagnosis of Ehlers-Danlos syndrome. Ethan Zuckerman, a communications professor, breaks down how recommendation algorithms impact users, highlighting their dual power to harm and heal, and emphasizes the need for greater transparency and responsibility from social media platforms.