When calculating an individual's health index as a function of health index parameters including biometric parameters and behavioral parameters, a monetary cost is associated with each health index parameter, and the costs for all health index parameters are aggregated and displayed to a user via a graphical user interface. The user is then permitted to adjust one or more health index parameters, and the aggregate health cost is updated to show the user the amount of health cost savings that can be achieved by different health index parameter adjustments. In this manner, an individual is incentivized to improve his health in order to save money.
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