Ben Fry and Phyllotaxis recently released this impressive online visualization that shows the statistical connections between related medical conditions. The Health Visualizer [ge.com] focuses on the major health issues facing Americans today, by allowing users to compare demographics (i.e. gender, age), risk factors (i.e. body mass index, smoking), diseases and conditions (i.e. diabetes, hypertension, heart disease, stroke).
While the visual and the animations seem simple at first sight, the real strength lies in empowering users to explore the many (often causal) relationships between different sets of statistical data in an intuitive way.
Coincidence or a bug? The (labels of the) age distribution from "No Diabetes" and "No Hypertension" are exactly the same?