Atherapist explains to a client, "dizziness occurs when there is a sudden drop in blood pressure. the shortness of breath you feel is the result of a slight biochemical change in your body. these physical changes occur when you overemphasize the importance of making a good impression." this therapist seems to be using to explain a panic attack to client.

cognitive therapy.

Explanation:

Cognitive therapy refers to that type of psychotherapy which deals with the thoughts and thinking of an individual and how it affects his or her behavior. Cognitive-behavioral therapy as it is often called can be applied to a wide range of problems which include depression, anxiety, eating disorder, panic attack, addiction, phobias, etc. As per the question, the therapist is using cognitive therapy to explain the consequences of overemphasizing to make a good impression.

the telephone is the answer