Have you ever overreacted? Of course you have. Maybe your spouse did or said something that normally would only be mildly irritating, but for some reason on a particular day it really upset you. This might cause you to say something you later regret. The chances of us as human beings overreacting to something increase when we are tired, hungry, or under the weather. In other words, when we are under duress it is not uncommon for us to be moody.