0 Normal and Abnormal

Some people say whatever most people in a society do is normal.Therefore,behavior that is different from that of the majority is abnormal.In our society,for instance,taking 10 showers a day would be considered abnormal behavior.This is true because few people take 10 showers a day.But does abnormal behavior indicate mental illness?Sometimes it does.However,this definition has serious  limitations.Most people,for instance,are not particularly creative.Does that mean that highly creative people sucj as Shakespeare or Einstein were abnormal?Does it mean they were mentally ill?Obviously not.Defining mental illness in terms of normal and abnormal behavior is not always, than,a useful standard.