Serotonin deficiency Suicide has a long history. The New Testament records that Judas Iscariot, the apostle who betrayed Jesus, hanged himself out of remorse. When Japanese samurais were defeated in battle, their honor code dictated that they commit seppuku, an act that became a solemn and stirring symbol of the Japanese people.
血清素缺少作祟自殺行逕歷史悠久，《新約》記載，背叛耶穌的門徒猶大因懊悔而上吊自縊；日本武士作戰失敗，為了榮譽而切腹自殺，更被視為大和民族悲壯之美的象徵。