Abstract: Systems and methods for the self management of health using a natural language interface. A system or method for self-management of health initiates dialogue with a user to solicit health information from the user using a natural language (NL) interface; In addition, the system or method may respond unsolicited health information from the user provided via a NL interface. The health information from the user is semantically processed in accordance with pre-specified health management rules to facilitate user self management of health. The natural language interface is a constrained natural language. The natural language interface interacts with a speech recognition system. The health management logic includes a common sense reasoning logic to semantically process NL input from the user according to rules to emulate common sense reasoning.