This stacked bar chart visualizes the relationship between race, age category, and physical health metrics. The chart displays stacked segments sorted by race-age groups along the y-axis, with the x-axis representing physical health values. Users can hover over individual bars to view tooltips showing the specific stacked values. The implementation uses D3.js APIs including `scaleBand`, `scaleLinear`, and `stack` to generate the visualization, with data derived from CSV health records and rendered as SVG. A legend with color-coded categories accompanies the chart.