1. A method for promoting behavioral intervention via evidence-based recommendations, the method comprising: at a web server including a processor and memory: receiving, via a mobile device communicatively coupled to the web server, information regarding characteristics or activities of a user, wherein the user is associated with a medical condition or an age group; indexing, in a memory accessible to the web server and using information regarding how long the user has been in an intervention program and physiological data about the user, a plurality of preconfigured actions for promoting behavioral interventions; determining, at the web server and using the received information and predetermined health information associated with the medical condition or the age group, an action for promoting behavioral intervention, wherein determining the action for promoting behavioral intervention includes selecting the action from the plurality of preconfigured actions and modifying the length or amount of the action so as to not exceed a target goal based on the received information and the predetermined health information; and providing, via the mobile device, the action or information associated with the action to the user, wherein providing the action or information associated with the action to the user includes modifying a game element in an interactive game being played by the user via the mobile device thereby enticing the user to complete the action for promoting behavioral intervention using game mechanics.