“…Illness behavior refers to cognitive and affective responses to somatic symptoms that affect the course of an illness and its treatment, which help clarify why some individuals react in extreme ways compared with others, despite similar symptomology. That is, while some people are inclined to deny illness, others become distressed by even minor bodily changes [15][16][17]. The psychiatric conception of abnormal illness behavior (AIB), pioneered by Pilowsky [18], quantifies constructs such as 'hypochondriasis', 'denial', 'psychological vs. somatic' (attribution of illness), 'irritability', 'disease conviction', and 'affective disturbance'.…”