Of course, you're fueling the waking state with these stimulants, and then, of course, it gets to 11 o'clock at night, and the brain says to itself, "Actually, I need to be asleep fairly shortly.
もちろん これらの興奮誘発剤で 覚醒状態を保っていても もちろん 夜11時になれば 脳はこう思います― 「あー もう すぐに寝なくちゃ」