Health Hazard Appraisal (HHA), or risk factor analysis, is a health education preventive medicine technique that assists people in recognizing their health risks and, through their own actions, in improving both their sense of well-being and their life expectancy. HHA, an educational tool in implementing theoretical behavior changes, is based on the premise that all people are subject to risks that can be identified and often reduced. The most common form of using the HHA is to complete a questionnaire, and to send it to a computer center, where a print-out is produced and sent back to the participant. Most HHA's will give an individual an indication of his present age, his health age, and an achievable age. In addition, they indicate the remaining years of life the individual has to live assuming he continues his present lifestyle. An achievable life expectancy is given if he chooses to change particular habits or behaviors, and specific behaviors are indicated as to what needs to be changed in order to live a longer life. Most HHA's are designed for adult populations and are used extensively at the university level; currently they are also being developed for use with the elementary age child and adolescent. Programs in some schools in Michigan and Florida now exist. (JM)