Traditionally, substance use research relied on clinical observations and surveys, but these methods miss the majority who do not seek formal treatment. Social media platforms like Reddit and TikTok now offer unfiltered, real-time narratives where millions discuss their experiences with substance use openly. Researchers are using these platforms to gain deeper insights into drug use patterns, stigma, and recovery. Advanced AI technologies, especially large language models like GPT-5, enable the analysis of vast amounts of nuanced, slang-rich, and emotionally charged content at scale, revealing trends and aiding public health efforts. These online communities often act as informal harm reduction spaces, providing support and safety information. Importantly, AI helps to better understand the complex stigma faced by people with substance use disorders, which is difficult to capture through traditional research methods. This approach offers a more realistic and human-centered view of substance use, supporting improved public health responses.
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