My first 20 years were devoted to investigating the effects of different types of exercise training on physical performance, body composition, and cardiorespiratory health. Since the mid-1990s, I've focused on understanding physical activity and eating patterns as modifiable health behaviors. Publications include some 70 peer-reviewed articles and three textbooks including iHealth: An Interactive Framework, now in its 4th edition (McGraw-Hill, 2020). In addition to being a professor at Georgia Tech for three decades, I was a Fulbright Scholar at the University of Cape Town Medical School (South Africa), a Senior Scientist at the Centers for Disease Control and Prevention (Atlanta), and a Visiting Research Professor in the School of Population Health at the University of Queensland (Australia). I'm an elected Fellow of the American College of Sports Medicine, National Academy of Kinesiology, Society of Behavioral Medicine, and Research Consortium of SHAPE America. In 2018 I published The Sneakers in the Closet and Other Essays, my first venture in narrative nonfiction (for more information go to Amazon).