My husband and I were wondering that too. We have a two and a half year old that is salt wasting. I would have to say she seems to have her emotions pretty under control (for a two year old). But we do have spurts of almost uncontrollable cying. Not like a tantrum, "I didn't get my way cry." It's set off by small simple things. And not all the time. She can wack her head on something by accident and never shed a tear. It can be such a simple thing that triggers her. And I too attribute it to hunger, but the kid never wants to eat. It's such a battle. So I don't care what the doctors say. I feel it contributes in some little way.