Severe clinical depression: what to know

Depression is more than a difficult day or temporary sadness. Severe depression may involve persistent low mood or loss of interest alongside fatigue, slowed thinking, difficulty concentrating, irritability, anxiety, changes in sleep, or withdrawal from usual activities. Some people sleep much more, while others cannot sleep. Daily tasks such as eating, washing, working, or caring for a child may feel unmanageable. A clinician also checks for medication effects, physical illness, substance use, and periods of unusually elevated mood.

Arrange a prompt assessment with a doctor or mental health professional and describe changes in mood, sleep, appetite, energy, concentration, and functioning. Treatment may combine talking therapy, prescribed medicine, practical support, and regular follow-up. Do not stop an antidepressant suddenly without medical advice. Tell a trusted person what you are experiencing, reduce alcohol or recreational drug use, and keep essential routines simple: fluids, food, medication as prescribed, and contact with support.

Seek emergency help now if you may harm yourself or someone else, have made a plan, cannot stay safe, hear commands to hurt yourself, or are unable to care for basic needs. Do not stay alone in immediate danger; contact local emergency services or go to an emergency department, and ask someone trusted to remain with you. Urgent review is also needed for severe agitation, confusion, or several nights without sleep with unusually high energy.

Ask which treatment options fit your symptoms, how soon improvement should be reviewed, what side effects need attention, and what safety plan to follow if suicidal thoughts intensify.