(HealthDay News) — Everyone is sad now and then. But there’s a difference between ordinary sadness and symptoms of depression, which may warrant psychological therapy.

The American Psychological Association says you should consider therapy if:

  • You feel overwhelmingly helpless and sad.
  • You find it difficult to carry out everyday activities, such as concentrating at work.
  • You worry excessively, always expect the worst or are constantly on edge.
  • Your actions are harmful to you or to others. Examples include drinking too much, abusing drugs or becoming overly argumentative and aggressive.