Karoshi in Japan


Makoto Iwahashi 

MAY 2 2020


中文    한국어    日本語 


Karoshi

Since a group of medical doctors, labor lawyers and labor activists coined the term karoshi, which literally means “death from overwork” in Japanese, in the 1980’s, the number of deaths and illnesses caused by workplace issues has increased dramatically.

According to the government whitepaper on karoshi, the number of workplace injury compensation application cases for injuries (including deaths) caused by either brain or heart disease due to overwork was 877 in 2018. In that year, the government recognized 238 cases including 82 deaths as workplace related. Those figures were 253 and 92 respectively in 2017. Japan has seen approximately 100 karoshi cases every year since 2002, meaning a karoshi occurs once every four days.

Generally, the threshold for the death to be considered karoshi, the worker must work more than 80 hours of overtime in a month for two to six months, or at least 100 hours of overtime in a month.

However, it should be noted that the cases the government determined as karoshi only represents the tip of the iceberg. It is extremely difficult for someone who have lost his/her family member to try to “prove” that the death was work-related. Many cases simply go unreported or treated as sudden cardiac death with no obvious cause. The Japanese government does not collect data on how many workers lose their lives due to overwork.