构建了包含1850万条帖子的Reddit数据集，研究美国健康运动MAHA的网络传播
Hidden in Plain Sight: Finding MAHA on Reddit
- 从海量Reddit帖子中提取12类MAHA相关信念的细粒度数据
- 覆盖2020-2025年共400万用户，总计1850万条帖子
- 适合研究社会运动传播、健康话语与社交媒体行为的研究者
Make America Healthy Again（MAHA）是一项涵盖广泛健康理念的全国性运动，从普遍认可的饮食与锻炼建议，到关于有机食品、转基因作物、儿童疫苗、科学及机构的争议性观点。社交媒体上散布着大量推广该运动的影响力人物和内容。研究其结构、话语与观念传播需要大规模、细粒度的数字足迹。从海量非结构化社交数据中构建涵盖不同MAHA主题的结构化数据极具挑战。本文介绍了一个覆盖六年（2020–2025）的Reddit数据集，包含来自400万用户的1850万条帖子。该数据集涵盖12类与MAHA相关的信念，提供了自然语境与主题背景，使来自不同领域的研究人员能够深入分析MAHA运动的动态、其结构与功能组成，以及支持者的语言与行为模式。
原文摘要 · Abstract (English)
Make America Healthy Again (MAHA) is a national health movement that encompasses a striking mix of beliefs, from broadly accepted concerns about good diet and exercise to controversial takes on organic and genetically modified food, childhood vaccination, science, and institutions. Various influencers and promoters of the MAHA movement on social media are scattered throughout the online space. Investigating the structure, discourse, and contagion of MAHA beliefs requires large-scale fine-grained digital footprints. Constructing structured data covering different MAHA themes from vast unstructured social media data is challenging. We introduce a Reddit dataset that spans six years (2020-2025), comprising 18.5M posts from 4M users. Containing the natural and thematic context of 12 MAHA-aligned beliefs, this dataset offers researchers from various domains the opportunity to study the dynamics of the MAHA movement, its structural and functional components, and the linguistic and behavioral patterns of its proponents.
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