Motorcycles are the most common mode of transportation in Taiwan, as they are convenient and can quickly reach their destination, saving a great deal of commuting time, but is riding a motorcycle related to people's healthy lifestyle habits? Or is it related to increasing the risk of obesity? The research team of Professor Liao in the Department of Health Promotion and Health Education at National Taiwan Normal University conducted a series of analyses and discussions on this topic. The research team measured motorcycle use behavior among more than 1,000 Taiwanese adults and explored their association with healthy lifestyle habits and obesity risk. The first findings showed that “high motorcycle users” (more than 280 minutes per week) had a 1.5-fold increase in obesity risk compared with "non-motorcycle users." The second study found that Taiwanese adults who ride more than 30 minutes a day on motorcycles replace more traffic-related physical activity (such as walking and cycling). Based on the results of this study, it is suggested that health promotion programs need to be designed specifically for the motorcycle population in the future.