I've alternated on and off eating breakfast a few times in my life almost entirely by accident. Once I go a few days without breakfast, assuming I am eating enough around dinner time, I stop getting my morning hunger. I'm back to eating breakfast, but I'm confident I could switch off again if I made the conscience decision to eat a bit more for dinner and take my lunch a bit earlier (I normally eat lunch around 2pm and dinner around 6-7pm).