Manoj Sharma (Social and Behavioral Health; Internal Medicine) presented a virtual keynote address titled, “The Emergence of the Fourth-generation Multi-theory Model (MTM) of Health Behavior Change in Health Promotion Research,” at the 1st International Health Literacy, Health Education and Health Promotion Congress and the 4^th Congress on Health Education and Health Promotion in Iran on August 19, 2023. Scholars from around the world including WHO and UNICEF participated in the Congress. Sharma’s presentation was about his novel model, its applications, and empirical research.