Obesity has become a serious problem in Japan, with the rate of obesity increasing from 13.3% in 2008 to 24.9% in 2017 according to the Japanese Ministry of Health, Labor and Welfare. Factors contributing to this rise include changes in diet due to globalization, lack of physical activity due to modern work environments, genetics, and socioeconomic factors. To combat this trend, individuals should strive for healthier diets and regular exercise while public health initiatives should focus on providing better access to healthy food options and creating more opportunities for physical activities.