The course is designed to introduce young adults ages 18–21 to the foundational concepts of physical fitness, exercise safety, and healthy lifestyle practices. The course was developed to address the increasing concern of physical inactivity among college students and to provide learners with the knowledge and skills necessary to develop lifelong healthy behaviors. Research indicates that many college students fail to meet recommended levels of physical activity, which can contribute to long-term health risks such as obesity, cardiovascular disease, and other chronic conditions (Peterson et al., 2018; Centers for Disease Control and Prevention, 2022). Providing structured fitness education during early adulthood can help students establish habits that improve both physical health and overall well-being (World Health Organization, 2020). The purpose of this project was to design an engaging and accessible online course that encourages students to explore their personal fitness levels and apply health concepts to real-life situations. The course is organized into five instructional modules covering the foundations of fitness, the components of physical fitness, exercise safety and techniques, nutrition and healthy lifestyles, and the development of a personal fitness plan. Each module includes interactive activities such as discussions, quizzes, reflection journals, case studies, and peer review assignments to support student engagement and knowledge application. These learning activities align with recommendations from the American College of Sports Medicine (2022), which emphasize the importance of educating individuals about exercise principles, fitness assessment, and safe physical activity practices.