A friend was telling me about his son's anger, then asking is there a carb and anger connection? I told him that there is a connection. I came home to "google" it for an article or two. There are too many articles to list. If one is wanting to read just one article I would recommend this one
Sugar/simple carbs are also linked to depression. Here is a link from Psychology Today
If one believes that he/she is having an issue with simple carbs and anger or depressions, remove the simple carbs for 2 weeks and increase one's fiber intake. The fiber will make one feel full longer and keep one's blood sugar stable. Let me know how this works for you.