Although the terms "normal" and "abnormal" can be argued at great length, psychologists often define the term "abnormal" as deviating from what is considered the "norm" and not conforming to the accepted social rules. Sounds pretty weak, right..."abnormal is anything that is not considered normal". The reality is that we define all sorts of behaviors, thoughts, etc. by what the majority of people do, and say that this is the norm. Behavior that falls outside of this is considered abnormal. It is important to recognize that abnormality is affected significantly by society and culture...what is abnormal in the United States may be considered completely normal in another country.