Publisher's Synopsis
Anxiety disorders and depression are two terms that refer to distinct types of mental illnesses but you will, nevertheless, often see them used interchangeably. The reason for this is that both groups of illnesses frequently co-occur, with half of those with a diagnosis of depression also having a diagnosis of an anxiety disorder. Both anxiety disorders and depression are also two of the most prevalent mental disorders in the world.The World Health Organization (WHO) reports that around 350 million people in the world are currently affected by depression which is slightly more than 4% of the world
