Beard, GM (English spelling) BeardGM

…This concept was proposed by American neurologist GM Beard in 1880. It was initially thought to be caused by nervous fatigue due to mental and physical overwork, and was called irritable weakness. However, since it was not necessarily seen in people who were in a state of constant sleeplessness such as on the front lines, and it was not necessarily cured by mental and physical rest, it was later considered to be caused by the balance between the person's situation and their disposition or personality, rather than by overwork itself, and it was considered to be a type of neurosis. …

*Some of the terminology that mentions "Beard, GM" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…1880年にアメリカの神経科医ビアードG.M.Beardによって提唱された概念で，当初は心身の過労による神経系の疲労によると考えられ，刺激性衰弱irritable weaknessと呼ばれた。しかし，その後，戦線などの不眠不休の状態にある人に必ずしもみられないこと，心身の休養によっても回復するとは限らないことなどから，むしろ過労そのものよりも，その人の置かれた状況と素質ないし性格とのかね合いで生じるものと考えられ，神経症の一型とされた。…

※「Beard，G.M.」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報