Complex sentence: Social anxiety disorder (SAD) (DSM-5 300.23), also known as social phobia, is an anxiety disorder which is one of the most common psychiatric disorders, with a lifetime prevalance of 12%.
Split into simpler sentences: Social anxiety disorder (SAD) (DSM-5 300.23), also known as social phobia, is an anxiety disorder. It is one of the most common psychiatric disorders, with a lifetime prevalance of 12%.