Mood disorders I. DEPRESSION AND MANIA ARE THE KEY EMOTIONS IN MOOD DISORDERS:
A. Depression—a low, sad state in which life seems dark and its challenges overwhelming
B. Mania—a state of breathless euphoria or frenzied energy
C. Most people with a mood disorder experience only depression
1. This pattern is called unipolar depression
2. There is no history of mania
3. Mood returns to normal when depression lifts
D. Others experience periods of mania that alternate with periods of depression
1. This pattern is called bipolar disorder
E. One might logically expect a third pattern—unipolar mania, in which people suffer from mania only—but this pattern is uncommon
F. Mood disorders have always captured people’s interest
G. Mood problems have been shared by millions and today the economic costs amount to more than $80 billion each year
1. The human suffering is beyond calculation II. UNIPOLAR DEPRESSION
A. The term depression is often used to describe general sadness or unhappiness
1. This loose use of the term confuses a normal mood swing with a clinical syndrome
2. Clinical depression can bring severe and long-lasting psychological pain that may intensify over time
B. How common is unipolar depression?
1. Almost 7 percent of adults in the United States suffers from severe unipolar depression in any given year
2. As many as 5 percent suffer mild forms
3. About 17 percent of all adults will experience unipolar depression in their lifetime
4. The prevalence is similar in Canada, England, France, and many other countries
5. The risk of experiencing this problem has increased steadily since 1915
C. Women are at least twice as likely as men to experience episodes of severe unipolar depression
1. As many as 26 percent of women (as opposed to 12 percent men) may have an episode at some time in their lives
2. Among children the prevalence is similar for boys and girls
3. These rates hold true across socioeconomic classes and