Psychology Information Online Homepage

Depression Homepage

National Directory of Psychologists - Locate a Local Psychologist

Articles by Psychologists

Forensic Psychology

Subject Index of Topics

What is a Psychologist?

How to Select a Psychologist

Information About Psychological Problems

Information About Psychological Treatment

Psychology Bookstore

Frequently Asked Questions about Psychology


List your practice in the National Directory of Psychologists

Publish Articles Online

Locate Continuing Education Programs

Psychology Jobs

Market Your Practice

Professional Resource Directory


Psychology Careers

Graduate Education

Licensing Information

FAQ - What are the signs and symptoms of a serious clinical depression?

A Major Depression is marked by a combination of symptoms that occur together, and last for at least two weeks without significant improvement. Symptoms from at least five of the following categories must be present for a major depression, although even a few of the symptom clusters are indicators of a depression, but perhaps not a major depression. 

  • Persistent depressed, sad, anxious, or empty mood 
  • Feeling worthless, helpless, or experiencing excessive or inappropriate guilt
  • Hopeless about the future, excessive pessimistic feelings 
  • Loss of interest and pleasure in your usual activities
  • Decreased energy and chronic fatigue
  • Loss of memory, difficulty making decisions or concentrating
  • Irritability or restlessness or agitation 
  • Sleep disturbances, either difficulty sleeping, or sleeping too much
  • Loss of appetite and interest in food, or overeating, with weight gain
  • Recurring thoughts of death, or suicidal thoughts or actions

This list is a guide to help you understand depression. It is not offered for you to diagnose yourself. If you have some of these symptoms, don't focus on how many symptoms you have. Instead, talk to a psychologist about how you have been feeling, to see if he/she can help.


More Information About Depression