graveyard shift 復習
過労死は医療現場でも問題視されています。
One woman’s suicide shines a harsh light on the plight of Japan’s doctors
On May 31, the Niigata Labor Standards Inspections Office (Rokisho) certified the suicide death of a 37-year-old physician as having been caused by overwork. This is known as a karō jisatsu, or suicide due to overwork.
Having no certification whatsoever to begin with, Aya Kimoto started her career as a nursing assistant. While working, she studied hard and was able to get into medical school at Niigata University. After six years she graduated and started doing internships. For her second internship as a digestive system surgeon beginning in April 2015, she had to move to the Niigata City General Hospital, and it was there that her work environment changed dramatically. Her emergency on-call hours skyrocketed, and there was an increase in graveyard and holiday shifts.
（一部抜粋）
文中に何度もでてくるgraveyard shiftを調べました。
『ジーニアス英和辞典』（第五版，大修館）には、「（三交代制の）深夜勤」、「深夜勤の労働者」と載っておりました。午前０時から８時までの勤務を指すことが多いようです。
ちなみに“day shift”は「昼間勤務，昼番」、“swing shift”は「午後交代制」で午後４時から深夜12時までの労働のことを言います。
『ビジネスパーソンのための英語イディオム辞典』（NHK出版）では、親しい間柄のくだけたビジネス会話に限って使った方がよいと書かれておりました。 “night shift”でも同じような意味で用いることができます。
graveyardの文字通り、過酷さが伝わってきます。（Gomez）
