No blog entry in about 3 years... well, I have a pacemaker now, and I am logging every workout with my Garmin watch. I had bradycardia, with overnight pulse rates in the 30s and 40s. I take meds that regulate my sleep. HR, sleep, workout data is at: https://connect.garmin.com/modern/profile/e3409082-4d17-4a46-837d-b64589f1d4dc