Hey. I'm 57 and was diagnosed with paroxysmal atrial fibriallation about 6 years ago. Fortunately, I haven't had any episodes for about a year and a half.
The med they gave me is rythmol. It is supposed to help regulate your HR. It has very mild beta blocking tendencies.
Here's an interesting thing-my HR has never gone above 150 since I have been riding seriously for about 8 months. This AM, I rode 25 miles at an average speed of about 18.5. For about 12 of those miles, I was between 20 and 24 mph; my HR average was 110. My max HR was 146.
Does anyone else have an unusually low HR? I don't get winded or anything and can go for hours at pretty good pace without any problem, but the HR just sits at a really low number. I have decided its okay, but wonder if anyone else is made like this.