Materials and Methods: This was a quasi-experimental and interventional study with a pretest-posttest design and a control group in 2024. The statistical population included health brokers in PHPHs affiliated with Tehran University of Medical Sciences. Using the simple random sampling method 4 participating households were selected as the experimental group, the rest acting as the control group; the total number of participants was 74. Four 2-hour training sessions were held for the experimental group, and reviewing of the topics and assignments and answering questions were done through a virtual training group. Data were collected using standard "self-efficacy" and "health-promoting lifestyle" questionnaires and analyzed using SPSS 28, the statistical tests being Chi-square, T-test, Pearson, and Kolmogorov–Smirnov tests.

  Results: After the intervention, the health-promoting lifestyle score increased from 30.40±21.00 to 168.31±24.71 and the health self-efficacy from 68.57±10.21 to 84.57±11.84 in the experimental group (P<0.001). The highest significant correlation was observed between lifestyle dimensions and self-efficacy (r=0.741)