Karōshi
... The first case of karōshi was reported in 1969 with the death from a stroke of a 29-year-old male worker in the shipping department of Japan's largest newspaper company ... It was not until the later part of the 1980s, during the Bubble Economy, however, when several high-ranking business executives who were still in their prime years suddenly died without any previous sign of illness, that the media began picking up on what appeared to be a new phenomenon ...