This interactive D3.js dashboard explores diabetes medication, gender, and age-group trends related to heart disease outcomes. It shows three SVG charts built from a merged CSV dataset, including a bar chart of heart disease cases by medication status, a pie chart of patient gender distribution, and a bar chart of cases across age groups. The code uses `d3.csv` to load data, `d3.select` to render SVG elements, and a custom tooltip for hover interactions. An embedded Power BI iframe complements the narrative with additional health analytics.