> For the complete documentation index, see [llms.txt](https://4heal.gitbook.io/4heal-1/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://4heal.gitbook.io/4heal-1/health-concierge/readme.md). # 4Heal **4Heal** is an AI-powered human health concierge composed of three key pillars:\ **wearable devices + AI Health Agent + a health incentive network (4Heal Depin Network).** We believe that in the next decade, the core of health management will no longer be a single device, a single app, or an isolated medical report, but: > **An AI health concierge that truly understands your body, grows with you, and actively helps you improve your health.** * **Wearable devices** act as the real-world input layer for bodily signals * **AI Digital Twin** serves as the long-term brain for individual health * **Depin Network** turns each user’s data and actions into part of a global health intelligence network, with value flowing back to contributors Together, they form a health concierge that can **continuously learn**, **connect across devices**, **predict across scenarios**, and **accompany users over the long term**. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://4heal.gitbook.io/4heal-1/health-concierge/readme.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.