1. A computer-implemented method for prioritizing communication of a health risk, comprising: obtaining, by a processor associated with the computer, health information for individuals; determining, by the processor and based on the health information, an initial health risk of each individual contracting each of plurality of diseases; calculating, by the processor and based on the initial health risks, an average health risk of each individual contracting the diseases; selecting, by the processor, a subset of the individuals based on the average health risks; calculating, by the processor, an improved health risk for the subset of the individuals contracting the diseases based on the subset of individuals making lifestyle changes; calculating, by the processor, a risk improvement for the individuals in the subset based on the average health risk and on the improved health risk; selecting, by the processor, among a plurality of methods of contacting individuals in the subset, a desired method of contacting individuals in the subset to communicate health risks and lifestyle changes based on a value of the calculated risk improvement; and initiating contacting the individuals in the subset to communicate the health risks and lifestyle changes according to the selected method of contacting.