Apparently what I was documenting was not my improving fitness reflected in a decreasing heart rate. It was the decline and fall of the Garmin heart rate monitor, which Best Buy says is rare. However, 2 other watches give readings which seem more acceptable and are consistent with each other. The Garmin says HR this morning is 36 while the other two watches say 59 and 60. (Fitbit Ionic and wife’s I-Watch)
Is the same thing happening with the scale?
Jogging Pop -- "ἀγων - ἀρετη" 