What is ‘normal’?

Normality- ‘being within certain limits that define the range of normal functioning’.

In the psychological and psychiatric domain this concept has been the topic of much debate in recent years, especially when related to changing definitions in the DSM IV.  When does just being sad for a while become ‘depression’ (DSM definition: depressed mood most of the day, nearly every day, for 2 weeks alongside two other symptoms) and why can we only suffer from the completely normal act of bereavement for 2 months (The symptoms are not better accounted for by Bereavement, i.e., after the loss of a loved one, the symptoms persist for longer than 2 months) before it becomes ‘abnormal’?

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