Hi Kora 
I just read your answer but if you plz can you explain more on how you referred fats on liver to the old brain , I mean do we think first that since there’s excess fat accumulation ( that’s a plus action ) =old brain 

Is this what you meant ? Whenever I see a plus action I refer it to the old brain ? And in pancreas cells it’s the opposite because we saw less or restricted action of these cells that’s why you referred it to the New brain ? Did I get it right ?