But there is good news. Nearly 80 percent of people with clinical depression can be treated successfully with medications, psychotherapy, or a combination of both. Even the most serious depressions usually respond rapidly to the right treatment. But first, depression has to be recognized. Types of Clinical Depression Two serious types of clinical depression are major depression and bipolar disorder .
Pleasure seems a thing of the past.
This type of depression can occur once in a lifetime or, for many people, it can recur several times. People with a major depression need professional treatment. These states of extreme elation and unbounded energy are called mania. This disorder usually starts when people are in their early twenties. Though unusual for this type of depression to start for the first time in later life, it requires medical treatment, whatever the person's age.