Because of the higher-than-average risk of hypertension, obesity, and diabetes among Hispanics, researchers selected these three health problems as the focus of a "radio novela" intended to increase the health knowledge and awareness of a Hispanic target audience and to stimulate their response to the problems. The replicable health communication program consisted of five 5-minute radio episodes, each discussing one risk factor and its symptoms, diagnosis, treatment, and prevention. The episodes centered around a young doctor whose mission was to help his community learn to prevent the three health risks. The final episode urged participation in a subsequent health fair. The episodes were broadcast twice a day over five days on a popular Spanish radio station in Richmond/Rosenberg, Texas. Pre- and post-tests with groups of adult Hispanic females and follow-up conversations with health fair participants indicated that most listeners were more concerned with obesity than with hypertension or diabetes, but that listener concern with all three problems rose as a result of the programs. Also, listeners' knowledge rose significantly in some areas but not regarding symptoms. Among listeners, 39% took action regarding their health. Listeners were more likely to attend the health fair. Researchers concluded that radio messages can be an effective health education strategy. (SB)