Abstract: A system for altering the brain state of a user is disclosed. The system may receive, from at least one sensor, data associated with one or more biometric markers of the user, and determine a brain state of the user based on the data associated with the one or more biometric markers of the user. The system may determine a desired altered cognitive/emotional state of the user (or a desired brainwave state), and cause one or more emitters to apply a stimulus or stimuli to the user.