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Question

تنيدگي يا استرس به مجموع واکنش هاي جسمي و رواني اطلاق مي شود که مي تواند موجب برهم زدن تعادل در افراد گردد. 

Answer 1

The terms tension or stress are applied to whole physical and mental reactions , which could cause / result in disturbance of the individuals' (mental) balance.

Answer 2

Stress or tension refers to a collection of physical and psychological responses which could disturb the mental balance of individuals.