english: In fact, many of the, shall we say, unpleasant characteristics that we chalk up to being a teenager -- moodiness, irritability, laziness, depression -- could be a product of chronic sleep deprivation.
non_english: U stvari, mnoge, recimo, neprijatne osobine  koje pripisujemo tinejdžerskom dobu: ćudljivost, razdražljivost, lenjost, depresija su možda posledica  hroničnog uskraćivanja sna.