Major Depressive Disorder

Understanding the symptoms, daily impact, and treatment options for MDD

What is major depressive disorder?

Major depressive disorder is a mood condition marked by a sustained period of depressed mood, loss of interest or pleasure, or both, along with changes in sleep, energy, concentration, appetite, movement, or self-worth. For many adults, the most painful part is not only sadness. It is the way depression quietly narrows life, making ordinary tasks feel heavier and connection harder to reach.

Signs and symptoms

  • feeling low, empty, hopeless, or emotionally flat most of the day
  • loss of interest in relationships, hobbies, or routines that used to matter
  • sleeping too much, not sleeping enough, or waking unrefreshed
  • low energy, slowed movement, or feeling mentally foggy
  • changes in appetite, concentration, guilt, or self-criticism

How MDD affects daily life

Depression often changes more than mood. Work can take longer. Small decisions can feel draining. Relationships may feel distant because it is harder to stay present, hopeful, or responsive. Some adults become quieter and isolated. Others look irritable or overextended from the outside while feeling shut down on the inside.

Evidence-based treatment approaches

  • Cognitive behavioral therapy: helps identify and shift depressive thinking patterns that keep people stuck.
  • Behavioral activation: rebuilds routines, movement, and rewarding activity when motivation is low.
  • Acceptance and commitment therapy: supports action guided by values even when mood is heavy.
  • Interpersonal work: addresses grief, role changes, and relationship strain that may be worsening symptoms.
  • Psychodynamic exploration: can help when depression is connected to long-standing emotional patterns or unresolved experiences.

When to seek help

It is time to reach out when symptoms are lasting, getting stronger, or making it harder to function at work, at home, or in relationships. You do not need to wait until things feel extreme to ask for support.

How PCG Health can help

PCG Health provides outpatient therapy in Pasadena for adults dealing with depression, burnout, grief, and related emotional strain. We tailor the plan to your symptoms, your life context, and your goals rather than applying the same approach to everyone.

Related pages: Individual Therapy, Group Therapy, Treatment-Resistant Depression, Insurance Information.

Frequently asked questions

How do I know if depression therapy is the right next step?

If low mood, numbness, irritability, loss of motivation, sleep change, or hopelessness are affecting work, relationships, or your ability to function, therapy is a reasonable next step.

What types of therapy are used for major depressive disorder?

Treatment may include cognitive behavioral therapy, behavioral activation, interpersonal therapy, acceptance and commitment therapy, mindfulness-based approaches, and psychodynamic work when helpful.

Do you accept insurance for depression treatment?

Yes. PCG Health works with many commercial, Medicare, Medi-Cal, TRICARE, and out-of-network arrangements, and the office can verify benefits at no cost.

Ready to take the next step?

Schedule a consultation with PCG Health. We will listen, answer your questions, and help you find the right path forward.

Schedule a Consultation