I'd like to introduce something that's made a tremendous difference in my resting heart rate and overall feeling of well-being. It's the Wim Hof Breathing Method. Wim (pronounced like Veem if you're North American) Hof is a Dutch man who holds many world records. His specialty is cold conditions and ice. For instance, he climbed both Mt. Everest and Mt. Kilimanjaro in sby DojoMojo - AFIBBERS FORUM
I don't necessarily wish to claim this is the final answer for all, but I really urge everyone to look at this treatment protocol described at the first link below. From over two years tirelessly gathering information from anywhere possible to try to treat/cure my afib without harmful medicines, and from over 30 years before that learning about heath the human body (I work in health care)by DojoMojo - AFIBBERS FORUM