Emptiness as a human condition is a sense of generalized boredom, social alienation, nihilism and apathy. Feelings of emptiness often accompany dysthymia, depression, loneliness, anhedonia, despair, or other mental/emotional disorders, including schizoid personality disorder, post-traumatic stress disorder, attention deficit hyperactivity disorder, schizotypal personality disorder and borderline personality disorder. A sense of emptiness is also part of a natural process of grief, as resulting death of a loved one, or other significant changes. The particular meanings of "emptiness" vary with the particular context and the religious or cultural tradition in which it is used.