This article examines the issue of overwork in Japan and its impact on mental health. It looks at the Japanese working culture, overtime work, and mental health effects, as well as causes of overwork such as cultural expectations, lack of labor laws, and lack of childcare support. The article also discusses policies implemented by the Japanese government to reduce overwork such as capping overtime hours and providing financial assistance for childcare services. Finally, an interview with Charles R Tokoyama, CEO of Japan Insiders is included to gain insight into the issue from an expert's perspective.