Arrhythmic events in LQT1 (KCNQ1 gene mutation) typically happen in situations of increased adrenergic tone (e.g., exercise, especially swimming), while in LQT2 (KCNH2 gene mutation) they typically happen as a result of strong emotions (especially sudden auditory stimuli), and in LQT3 (SCN5A) during sleep or rest [55]. The gene discussed is KCNQ1; the disease is long QT syndrome 3.