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What Is Depression?

Many people experiencing the symptoms of depression might begin to wonder if there is something really wrong with them. One typical fear is that they might be going crazy. Unfortunately, the reactions and comments from other people such as, “Just get yourself together!” are not very helpful

Although you might feel alone in your struggle against depressive moods, the reality is that many people experience these moods from time to time, or even regularly. In fact, it is estimated that 1 in every 4 people experience significantly depressed mood at some time in their life.

 Depression can affect any kind of person at any stage of their life. You may be an introvert or an extrovert, socially active or shy, youthful or elderly, male or female, wealthy or poor. Whatever your distinction, you can become depressed. That means that any person you know is fair game. So remember, you are not alone.

Depression is a word used in everyday language to describe a number of feelings, including sadness, frustration, disappointment and sometimes lethargy. However, in clinical practice, the term "Depression" or "Major

Depression" differs from these everyday 'down' periods in three main ways:

  • Major Depression is more intense
  • Major Depression lasts longer (two weeks or more)
  • Major Depression significantly interferes with effective day-to-day functioning

 In this information, the word depression is referring to Major Depression or a clinical depression.

Depression as a Syndrome                     

A syndrome is a collection of events, behaviours, or feelings that often go together. The depression syndrome is a collection of feelings and behaviours that have been found to characterise depressed people as a group. You may find that you experience all or some of these feelings and behaviours. There are many individual differences to the number of symptoms and the extent to which different symptoms are experienced. These symptoms are described in this next section.


Depression is considered to be a disorder of mood. Individuals who are depressed, describe low mood that has persisted for longer than two weeks. In mild forms of depression, individuals may not feel bad all day but still describe a dismal outlook and a sense of gloom. Their mood may lift with a positive experience, but fall again with even a minor disappointment. In severe depression, a low mood could persist throughout the day, failing to lift even when pleasant things occur. The low mood may fluctuate during the day – it may be worse in the morning and relatively better in the afternoon. This is called ‘diurnal variation,’ which often accompanies a more severe type of depression. 

In addition to sadness, another mood common to depression is anxiety.


Individuals who are depressed think in certain ways, and this thinking is an essential feature of depression. It is as much a key symptom of depression as mood or physical symptoms. Those who are depressed tend to see themselves in a negative light. They dwell on how bad they feel, how the world is full of difficulties, how hopeless the future seems and how things might never get better.

People who are depressed often have a sense of guilt, blaming themselves for everything, including the fact they think negatively. Often their self-esteem and self- confidence become very low.


Some people experience physical symptoms of depression.

  • Sleep patterns could change. Some people have difficulty falling asleep, or have interrupted sleep, others sleep more and have difficulty staying awake
  • Appetite may decline and weight loss occurs, while others eat more than usual and thus gain weight
  • Sexual interest may decline
  • Energy levels may fall, as does motivation to carry out everyday activities. Depressed individuals may stop doing the things they used to enjoy because they feel unmotivated or lethargic

 Interacting with Other People                

Many depressed people express concern about their personal relationships. They may become unhappy and dissatisfied with their family, and other close, relationships. They may feel shy and anxious when they are with other people, especially in a group. They may feel lonely and isolated, yet at the same time, are unwilling or unable to reach out to others, even when they have the opportunities for doing so.

Centre for Clinical Interventions