TatoebamookeeeCC BY 2.0 FRあお向けに寝ると、舌やノドチンコがノドの奥に下がるため、上気道が塞がりやすくなります。英語の訳If you sleep on your back it's easier for your upper airway to be obstructed because your tongue, uvula, etc. slip towards the back of your throat.出典: Tatoeba文番号 76916