DO ANXIETY & DEPRESSION GO HAND IN HAND?
Anxiety can in fact lead to depression, because it brings up a lot negative thoughts and feelings. Similarly, someone with depression could also experience anxiety and even panic attacks as a result of the negative thoughts and feelings aroused by this emotion. This is called comorbidity, because the disorders occur simultaneously.
HOW DO CHANGES IN POSITIVE AND NEGATIVE MOOD PREDICT ANXIETY?
Changes in positive and negative affects influence the severity of symptoms in anxiety and depression, they also predict the effectiveness of treatment.