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| title: README |
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| <img src="https://huggingface.co/spaces/Actogram/README/resolve/main/banner.svg" class="dark:hidden" style="margin-top:0" width="100%" alt="Two lines of work, drawn by hand and kept apart. Left: daily activity patterns, a week of step counts drawn one row per day, with steps through the day and quiet hours at night. Right: population health data, the US health survey NHANES analysed with Biobank MCP, which returns survey-weighted estimates with their ranges."><img src="https://huggingface.co/spaces/Actogram/README/resolve/main/banner-dark.svg" class="hidden dark:block" style="margin-top:0" width="100%" alt="Two lines of work, drawn by hand and kept apart. Left: daily activity patterns, a week of step counts drawn one row per day, with steps through the day and quiet hours at night. Right: population health data, the US health survey NHANES analysed with Biobank MCP, which returns survey-weighted estimates with their ranges."> |
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| **Actogram AI** develops tools for studying daily activity patterns and the circadian rhythm from ordinary step counts, |
| and for analysing population health data. Two lines of work, kept apart: |
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| ### 1. Biobank MCP: AI-assisted analysis of public US health survey data |
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| <a href="https://actogram-biobank-mcp.hf.space/"><img src="https://huggingface.co/spaces/Actogram/README/resolve/main/card-open.svg" class="dark:hidden my-0!" style="margin:0" width="100%" alt="Open Biobank MCP: the research tool, in your browser, at actogram-biobank-mcp.hf.space"><img src="https://huggingface.co/spaces/Actogram/README/resolve/main/card-open-dark.svg" class="hidden dark:block my-0!" style="margin:0" width="100%" alt="Open Biobank MCP: the research tool, in your browser, at actogram-biobank-mcp.hf.space"></a> |
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| The one address of the research tool: `actogram-biobank-mcp.hf.space`. For now it works with one data source, |
| NHANES, the US national health survey. |
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| <a href="https://actogram-biobank-mcp.hf.space/"><img src="https://huggingface.co/spaces/Actogram/README/resolve/main/card-levels.svg" class="dark:hidden my-0!" style="margin:0" width="100%" alt="Three levels of access to Biobank MCP, every skill on each. Try it now: 5 questions in your browser, without an account. Free account with a work e-mail, ready at once: 200 questions a day, saved chats, your own files. Actogram features: for approved research, on request."><img src="https://huggingface.co/spaces/Actogram/README/resolve/main/card-levels-dark.svg" class="hidden dark:block my-0!" style="margin:0" width="100%" alt="Three levels of access to Biobank MCP, every skill on each. Try it now: 5 questions in your browser, without an account. Free account with a work e-mail, ready at once: 200 questions a day, saved chats, your own files. Actogram features: for approved research, on request."></a> |
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| <sub>Research prototypes. AI-generated answers and analyses may contain errors; verify results before use. Not intended for diagnosis or treatment. Do not enter personal information. Biobank MCP is independent and not affiliated with or endorsed by CDC or NCHS. Questions or problems: admin@actogram.ai</sub> |
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| ### 2. Activity research |
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| Characterising daily activity patterns and the circadian rhythm from step-count data. The method was tested on existing |
| data from about 30,000 participant samples (NHANES and Fitbit) and presented as poster F170 at Sleep Europe 2026 in |
| Maastricht. More at [actogram.ai](https://actogram.ai). |
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| [actogram.ai](https://actogram.ai) | [LinkedIn](https://www.linkedin.com/company/actogram-ai) | |
| [X](https://x.com/actogram_ai) | [GitHub](https://github.com/actogram) | admin@actogram.ai |
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| <sub>Made by Actogram AI. Our team works in Barcelona, Spain, and Actogram Ltd is registered in London, United Kingdom.</sub> |
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