Apathy is a lack of feeling, emotion, interest, or concern about something. It is a state of indifference, or the suppression of emotions such as concern, excitement, motivation, or passion. An apathetic individual has an absence of interest in or concern about emotional, social, spiritual, philosophical, virtual, or physical life and the world.
The apathetic may lack a sense of purpose, worth, or meaning in their life. And may also exhibit insensibility or sluggishness. In positive psychology, apathy is described as a result of the individuals feeling they do not possess the level of skill required to confront a challenge (i.e. "flow"). It may also be a result of perceiving no challenge at all (e.g. the challenge is irrelevant to them, or conversely, they have learned helplessness). Apathy is something that all people face in some capacity and is a natural response to disappointment, dejection, and stress. As a response, apathy is a way to forget about these negative feelings. This type of common apathy is usually only felt in the short term and when it becomes a long-term or even lifelong state is when deeper social and psychological issues are most likely present.
Apathy should be distinguished from reduced affect display, which refers to reduced emotional expression but not necessarily reduced emotion.
Pathological apathy, characterised by extreme forms of apathy, is now known to occur in many different brain disorders, including neurodegenerative conditions often associated with dementia such as Alzheimer's disease, and psychiatric disorders such as schizophrenia. Although many patients with pathological apathy also suffer from depression, several studies have shown that the two syndromes are dissociable: apathy can occur independently of depression and vice versa.