Bradycardia without symptoms. How slow is roo slow? I've had a slow heart rate most of my life and my adult sons also have slower heart rates, so there seems to be a genetic component. My heart rate at night will sometimes go as low as 40 bpm. My overall heart rate averages about 54. My cardiologist is taking a wait and see approach, but I'm still wondering if it may suddenly drop too low in ...
