Putative mechanistic pathways leading to atrial fibrillation (AF) in patients with mental disorder (MD) Patients with MD are prone to developing AF through mechanisms involving overactivation of the hypothalamic–pituitary–adrenal (HPA) axis.
I guess it makes sense. There's probably a lot of activity during any mental health episodes that affects the heart.
sometimessober's comment on Pathophysiological Mechanisms of Psychosis-Induced Atrial Fibrillation: The Links between Mental Disorder and Arrhythmia | SpeakBits