Regarding "stacked triggers," I meant to say that anything - too much or too little exercise, food, drink, minerals, lack of sleep, and especially anxiety and stress,- for those so predisposed by heredity and body type, personal history, etc. letting ourselves get out of balance, can precipitate afib, flutter, etc.
Why are we so sensitive? Do we bring it on ourselves?
Is there more afib, flutter now then in the past? What parts of the world are relatively free of it?
Someday this condition will be predictable by genetic studies and treatable - individual blueprints.
In the meantime we have to take notice of our individual make- ups and attempt to monitor ourselves.