--- title: "Karoshi in History of Japan" description: "Karoshi means death from overwork in Japan, showing how postwar labor culture, long hours, and family strain shaped modern History of Japan." canonical: "https://fiveable.me/history-japan/key-terms/karoshi" type: "key-term" subject: "History of Japan" unit: "Unit 12" --- # Karoshi in History of Japan ## Definition Karoshi is Japanese for death from overwork. In History of Japan, it refers to the health and social costs of long work hours, especially in postwar corporate culture. ## What It Is Karoshi is the Japanese term for death from overwork, and in History of Japan it refers to the way extreme labor demands can damage health, family life, and the wider social order. It is not just a medical label. It is a window into modern Japanese work culture, especially the expectation that loyal employees stay late, take on heavy workloads, and put the company first. The term became associated with modern Japan as cases were documented from the 1960s onward. Heart attacks and strokes were often linked to long hours, stress, and little rest. That matters historically because karoshi emerged during a period when Japan was becoming an economic powerhouse, and success was often tied to discipline, endurance, and corporate dedication. In this course, karoshi connects most directly to the postwar economic growth period and to the rise of the salaryman ideal. A salaryman was expected to work long hours, travel for the firm, and show loyalty to the company in ways that blurred the line between work and personal life. In that environment, overtime could stop feeling exceptional and start feeling normal. Karoshi also shows how economic growth can have social costs. Families could be strained when one member was rarely home, and caregiving often fell more heavily on wives and mothers. That links the term to Japanese gender roles and to the pressure on the older ie-style expectation that the household should support the worker, even when the worker’s schedule made family life harder. The government eventually treated karoshi as a public health and labor issue. Efforts to reduce overtime, limit abuse of workers, and encourage better work-life balance show that the term is part of modern labor history, not just a sad headline. When you see karoshi in a History of Japan class, think about how Japan’s economic success depended on labor patterns that also created serious human costs. ## Why It Matters Karoshi matters because it gives you a concrete way to talk about the downside of Japan’s postwar economic miracle. A lot of Japan history courses focus on growth, exports, and technology, but karoshi reminds you that rapid development also changed everyday life, workplace expectations, and family structure. It is especially useful when you are tracing how industrialization and corporate culture shaped modern society. The term fits alongside ideas like the salaryman, long overtime culture, and the pressure to prioritize the company over home life. It also helps explain why reforms around labor law and employee health became necessary later. Karoshi can also be used to compare public ideals with lived reality. On paper, economic growth looks like progress. In practice, the people producing that growth could face exhaustion, illness, and neglect of family responsibilities. That tension is a common theme in modern Japanese history, and karoshi is one of the clearest examples of it. ## Connections ### [salaryman](/history-japan/key-terms/salaryman) Karoshi is closely tied to the salaryman ideal, because the expectation of loyalty, long hours, and after-work obligations helped normalize overwork. When you study salarymen, you are also looking at the workplace culture that made karoshi more likely. The term shows what happened when corporate dedication became pushed too far. ### work-life balance Work-life balance is the modern response to the same pressure that produces karoshi. Instead of treating endless overtime as proof of commitment, work-life balance asks how workers can keep health, family time, and rest. In Japan history, this connection shows the shift from growth-first thinking to concern about labor conditions. ### [Economic Growth Period](/history-japan/key-terms/economic-growth-period) Karoshi makes more sense when you place it in the Economic Growth Period, when Japan’s postwar economy expanded quickly and companies demanded intense effort from workers. The term helps you see that economic success was not just about factories and exports. It also depended on labor practices that changed daily life. ### [gender equality in employment opportunity law](/history-japan/key-terms/gender-equality-in-employment-opportunity-law) This law connects to karoshi because both deal with how work is structured in modern Japan. Karoshi reflects a workplace built around long hours and old assumptions about who can absorb that burden at home. Gender equality reforms challenge those assumptions by pushing employers to rethink hiring, promotion, and family responsibilities. ## On the AP Exam A quiz or short essay might ask you to identify karoshi in a source about overworked office employees, factory workers, or postwar labor culture. The move you make is to link the term to Japan’s economic growth, corporate loyalty, and the social cost of long hours. If a prompt gives you a case study, you should explain how stress, overtime, and family strain connect to modern Japanese work expectations. In a timeline or term ID question, place it in the postwar era and connect it to labor reform and work-life balance debates. ## Key Takeaways - Karoshi means death from overwork, and in Japanese history it refers to the extreme health costs of long work hours and stress. - The term fits the postwar era, when Japan’s economic growth made long hours and corporate loyalty seem normal in many jobs. - Karoshi is not just about individual health, because it also reveals how work culture can affect families, gender roles, and daily life. - The concept is useful for explaining why labor reform and work-life balance became serious issues in modern Japan. - When you see karoshi in a source, think about both economic success and the human cost behind that success. ## FAQs ### What is karoshi in History of Japan? Karoshi is the Japanese term for death from overwork. In History of Japan, it describes the health and social effects of long hours, intense stress, and workplace pressure, especially in the postwar era. It is a useful term for discussing labor culture, economic growth, and family strain. ### When did karoshi become a recognized issue in Japan? Cases have been documented since the 1960s, when Japan’s rapid economic growth made long work hours more common in many industries. The term became more visible as heart attacks and strokes were linked to overwork. It later became a public health and labor policy issue. ### How is karoshi connected to salaryman culture? Karoshi is strongly connected to the salaryman ideal because salarymen were often expected to work long hours, stay loyal to the company, and put work ahead of personal life. That culture helped normalize overtime. Karoshi shows what can happen when that expectation becomes extreme. ### Is karoshi only about physical illness? No. Heart attacks and strokes are the most commonly cited causes, but the term also points to stress, burnout, and strain on family life. In History of Japan, that broader meaning matters because it shows how labor culture shaped both bodies and households. ## Related Study Guides - [12.3 Family structure and gender roles](/history-japan/unit-12/family-structure-gender-roles/study-guide/KHL3you7po8AhHEw) - [10.2 Economic growth and technological advancements](/history-japan/unit-10/economic-growth-technological-advancements/study-guide/fjVxolHFGtaVSSIz) ## About This Document Canonical Fiveable pages are available as Markdown at the same path plus `.md`. - [llms.txt](https://fiveable.me/llms.txt): index of Fiveable's sections and URL patterns - [llms-full.txt](https://fiveable.me/llms-full.txt): complete subject and unit listing - [MCP server](https://fiveable.me/mcp): call Fiveable as tools instead of fetching pages (`https://fiveable.me/api/mcp`) - [MCP server for AP teachers](https://fiveable.me/mcp/teachers): a teacher's classes, assignments and AP-rubric grading (`https://fiveable.me/api/mcp/teacher`) ## Structured Data ```json {"@context":"https://schema.org","@graph":[{"@type":"LearningResource","@id":"https://fiveable.me/history-japan/key-terms/karoshi#resource","name":"Karoshi in History of Japan","url":"https://fiveable.me/history-japan/key-terms/karoshi","learningResourceType":"Concept explainer","educationalLevel":"AP® / High School","about":{"@id":"https://fiveable.me/history-japan/key-terms/karoshi#term"},"audience":{"@type":"EducationalAudience","educationalRole":"student"},"dateModified":"2026-07-03T02:21:32.680Z","isPartOf":{"@type":"Collection","name":"History of Japan Key Terms","url":"https://fiveable.me/history-japan/key-terms"},"publisher":{"@type":"Organization","name":"Fiveable","url":"https://fiveable.me"}},{"@type":"DefinedTerm","@id":"https://fiveable.me/history-japan/key-terms/karoshi#term","name":"karoshi","description":"Karoshi is Japanese for death from overwork. 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