Low blood sugar bad for marriage

Low levels of blood sugar may be a primary cause of marital disharmony with new research finding that couples tend to be angrier with each other when their glucose levels are down.

In a 21 day study, the researchers found that levels of blood glucose in married people, measured each night, predicted how angry and even aggressive they would be towards the other.

At the end of the study period, those who had generally lower levels of glucose were more likely to be irritable and pick a fight.