Artificial intelligence is fundamentally changing how health content is encountered and acted upon across both the information and healthcare ecosystems. AI systems now generate claims, curate information, interpret symptoms, synthesize evidence, and guide decisions, with significant opportunities and risks for the public. Potential benefits include improvements in access, comprehension, and continuity of care. At the same time, AI can introduce inaccurate or manipulative content that is difficult to distinguish from reliable guidance, and encourage automated decisions that affect care with little transparency or recourse. We introduce a four-stage framework to examine how these opportunities and risks unfold as the public moves through the information environment and into formal healthcare.

翻译：人工智能正从根本上改变健康内容在信息与医疗生态系统中的呈现方式及其影响。当前，AI系统能够生成主张、筛选信息、解读症状、综合证据并辅助决策，这既为公众带来重大机遇，也伴随着显著风险。潜在益处包括改善医疗可及性、提升理解能力以及促进护理连续性。与此同时，AI可能引入难以与可靠指导区分的不准确或操纵性内容，并推动影响医疗服务的自动化决策，而这些决策过程缺乏透明度且难以追责。我们提出一个四阶段框架，用以审视当公众从信息环境步入正式医疗体系时，这些机遇与风险如何逐步展开。