In some embodiments a content delivery system for controlling media content provided by at least one media device for media consumption by at least one consumer is described. In an embodiment the system comprises at least one sensor for sensing body data of the at least one consumer, a receiver for receiving sensed body data from the sensor, a data store storing media content for selection, at least one media device for outputting said selected content to said at least one consumer, and at least one processor configured to query said data store and control the selection of said media content based at least in part on the sensed body data, and control the output of said selected media content to said at least one media device. The sensed body data may indicate the mood or emotional state of the consumer.