Debilitating depression is a mood disorder characterized by feelings of sadness, unhappiness and misery that interfere with the ability to engage in daily activities. Those with debilitating depression may not feel able to get out of bed in the morning and may spend the whole day sleeping.
In addition to extreme feelings of sadness, those with debilitating depression may also experience restlessness, irritability, change in appetite, difficulty concentrating, fatigue and guilt, according to MedlinePlus. People with debilitating depression may also think about death frequently and experience suicidal thoughts.
The exact cause of debilitating depression is not known, but MayoClinic.com notes that a variety of factors could be involved. Physical brain abnormalities and chemical imbalances may cause depression that occurs without a trigger. Traumatic life events or trauma may also lead to debilitating depression.
Debilitating depression is usually treated with a combination of medications and regular behavioral therapy. MedlinePlus notes that individuals between the ages of 18 and 24 with debilitating depression should be monitored more closely due to an increased risk of developing suicidal thoughts.