Bahasa Jepangnya “demam perkembangan kecerdasan”

demam tanpa sebab pada bayi; demam akibat terlalu banyak berpikir; demam saat tumbuh gigi; demam perkembangan kecerdasan

unexplained fever in an infant (in the past believed to be related to intellectual development); fever that comes from using one's head too much; teething fever; wisdom fever