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Neuroscience explains why teens are so vulnerable to Big Tech social media platforms
Key Excerpts from Article on Website of The Conversation
Posted: June 17th, 2026
https://theconversation.com/neuroscience-explains-why-teens-...
In a landmark decision, a Los Angeles jury has found that social media company Meta and video streaming service YouTube harmed a young user with addictive design features that led to mental health distress, including body dysmorphia, depression and suicidal thoughts. Commentators have referred to this as social media’s “Big Tobacco” moment and further lawsuits are pending. Neuroscience shows that heavy social media use can overstimulate the teen brain’s still-developing reward pathways in ways similar to addictive behaviours like gambling. This immature system also makes teenagers more sensitive to social feedback and less able to cope with rejection. Many Canadian teens describe [being] constantly connected online, yet increasingly disconnected in real life. They report pressure to present idealized versions of themselves and to keep up with peers. Trial data in a case between the U.S. Federal Trade Commission and Meta show that only a small fraction of time on Meta platforms involves engaging with friends — about seven per cent on Instagram and 17 per cent on Facebook. The rest is mostly scrolling and watching rather than interacting. This results in an illusion of connection while deepening a sense of isolation. Research involving more than 9,000 adolescents across eight countries found a strong association between problematic social media use and higher rates of depression and anxiety. Large studies across high-income countries consistently link heavy social media use to poorer physical health outcomes too, including shorter sleep and higher rates of obesity.
Note: Former Facebook executive Tim Kendall told Congress that the company intentionally made its product as addictive as cigarettes. Meta whistleblower Sarah Wynn-Williams told US senators that the company targeted teenage girls with beauty and weight-loss advertisements during moments of heightened vulnerability such as after deleting a selfie. According to her testimony, Meta could detect when users were feeling "worthless," "helpless," or like a "failure," and then make that information available to advertisers. For more along these lines, read our concise summaries of news articles on Big Tech and mental health.
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