Psychological Disorders — Psychology STD 12 Commerce / Arts — Question

The major criteria of abnormality or psychological disorders are deviance, personal distress and impaired functioning. Illness and absence of illness are not distinct categories but are on opposite poles of the continuum sequence as explained below.
Stage 1 – The person is physically and psychologically healthy. They are motivated and emotionally stable.
Stage 2 – The person may get affected by life stressors, feel anxious, lack energy, etc. For e.g., before an examination. It is possible to push oneself back towards positive health by adopting a healthy lifestyle.
Stage 3 – The person shows signs of psychological damage and experience negative feelings like sadness, lack of motivation, fear and may even indulge in addictive behaviour. However, even this stage is not irreversible.
Stage 4 – The person exhibits extreme distress, impairment in mental, emotional and social functioning. He/She needs professional treatment.