quizzlet 9. George Frideric Handel composed his Messiah during three weeks of intense, creative energy. Many believe Handel suffered a mild form of dysthymia. persistent depressive disorder. bipolar disorder. major depressive disorder.

bipolar disorder.

Explanation:

In psychology, bipolar disorder is also referred to as 'manic depression' and 'manic-depressive illness'. It is described as one of the several mental disorders that often lead to unusual and unnecessary shifts of concentration, mood, activity levels, energy, and the capability of a person to carry out everyday tasks.

Symptom: Mania, mood swing, etc.

Treatment: Psychotherapy.

As per the question above, the statement represents the 'bipolar disorder'.