OK, thanks to Dan and Adrienne, looks like I might order one anyhow. Might be fun to play around with. A-fib is one of my big worries post-op since I don't have it now. I take Toprol 50 mg., but have been on it so long, I don't remember what they originally gave it to me for. I do think it makes me tired. If I forget to take it in the morning, I can always tell because my heart seems to start beating stronger. My Aunt takes it for BP, and her Dr. told her to take it at bedtime, so she wouldn't be tired all day.
I actually do hope to start getting in some sort of better shape once I'm fixed up, and will be walking on my treadmill, and /or going to rehab. Guess I'll go to Amazon and read reviews. Thanks!