Update README.md

Author: mschwar

README.md

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-# data-visualization
+# Tsimane Oral Health Heatmap: A Data Visualization Project
+
+This repository showcases a data visualization project designed to represent the complete oral health status of the Tsimane population of Bolivia. The heatmap synthesizes over 32,000 data points from 1,176 individuals into a single, intuitive image, revealing complex patterns of dental health across age, sex, and anatomy.
+
+---
+
+## ▶️ View the Live Project
+
+The full project, including the visualization and detailed analysis, is best viewed on the live project page:
+
+**[https://mschwar.github.io/data-visualization/](https://mschwar.github.io/data-visualization/)**
+
+---
+
+## About the Visualization
+
+The heatmap displays the dental health of **1,176 individuals** (543 men and 633 women) from the Tsimane Health and Life History Project. Its purpose is to make a complex, multidimensional dataset immediately understandable by visualizing patterns of tooth decay and loss across:
+*   **28 permanent teeth** (incisors, canines, premolars, and molars)
+*   **Age groups** (ranging from 15-24 to 75+)
+*   **Sex** (male and female)
+*   **Anatomy** (upper and lower teeth)
+
+A 5-point color scale indicates the health status of each tooth, from healthy (blue) to missing (red).
+
+## Repository Contents
+
+*   `index.md`: The main content file for the GitHub Pages site, written in Markdown.
+*   `oral-health-heatmap.png`: The high-resolution image of the data visualization.
+*   `_config.yml`: The configuration file that applies the visual theme to the GitHub Pages site.
+
+## Publication Context
+
+This visualization was created as part of the research published in:
+
+> Trumble, B., Schwartz, M., et al. (2024). Poor Oral Health Is Associated With Inflammation, Aortic Valve Calcification, and Brain Volume Among Forager-Farmers. *The Journals of Gerontology*. [DOI: 10.1093/gerona/glae013](https://doi.org/10.1093/gerona/glae013)
+
+---
+
+Created by **Matthew Schwartz**.