In Japanese the word is karoshi, or "death from overwork."
The latest karoshi victim was 24-year-old Matsuri Takahashi who worked for the Japanese ad agency Dentsu and reportedly logged 105 overtime hours in one month. At work she tried to maintain appearances, but on Twitter she spoke the truth.
"It's 4 a.m. My body's trembling," she reportedly said in one post. "I'm going to die. I'm so tired."
Takahashi leapt from the company dormitory around Christmas last year. This past Wednesday, December 28, Dentsu's president and chief executive Tadashi Ishii announced he would resign in March.