Abstract: There is disclosed a system and method for adapting digital content to a user's emotional state. In an embodiment, the system comprises: one or more sensors for capturing physiological data to monitor the emotional response of a user to stimulus in their environment; an emotional intelligence engine for determining the emotional state of the user based on physiological data filtered and processed from the one or more sensors; means for correlating the determined emotional state of the user with one or more user performance metrics relating to the user's interaction with digital content; and means for adapting the digital content in response to the user's emotional state and one or more user performance metrics to achieve a desired emotional state for the user.