Keywords: Air pollution; Alcohol; Arrhythmias; Atrial fibrillation; Caffeine; Diabetes; Diet; Genetic predisposition; Health economics; Hyperlipidaemia; Hypertension; Hyperthyroidism; Medications; Obesity; Obstructive sleep apnoea; Patient preferences; Physical activity; Post-operative atrial fibrillation; Prevention; Psychological distress; Recreational drugs; Risk factors; Smoking; Stroke; Supraventricular arrhythmias; Therapy.