Anxiety disorders

A group of mental health disorders characterised by excessive, disproportionate fear or anxiety that disrupt daily life. Although fear and anxiety are natural, in these disorders they are chronic, intense, and maladaptive.

Source: DSM‑5 (2013); ICD‑11 (2017). Also: Craske et al., “Anxiety Disorders” (Nature Reviews Disease Primers, 2017); Stein et al., Lancet Psychiatry (2017).