Yes, I do think there is a link between electrolyte deficiency and my arrhythmias. I posted an update here: Triggers of Arrhythmia. In the update, I said that I think there is a positive feedback loop: PVC’s trigger more PVC’s. But I didn’t mention that my very first arrhythmia episode, a pretty severe event that made me lightheaded to nearly losing consciousness, occurred about 6 years ago after a heavy cardio workout when I was probably dehydrated. Since I’d never had PVC’s up to that point, I didn’t know what they were, so it was frightening. However, after that time I became pretty attentive to hydration and salt and potassium intake when exercising and even in normal daily life. I’ve had many episodes that I don’t think were caused by low K. But I do think that first severe episode may have “taught” my cardiac nerves the PVC rhythm.