english: Well, we can ask a very different question: What is it about the physiological quality of your sleep when you do get it that restores and enhances your memory and learning ability each and every day?
non_english: Pa, možemo postaviti drugačije pitanje: kakva su to fiziološka svojstva sna da kada dovoljno spavate, ona obnavljaju i poboljšavaju memoriju i sposobnost učenja iz dana u dan?