The combination of biking and blogging allows for a certain amount of obsessing. Based on various articles I read on the internet I find that by watching my resting heart rate (pulse while lying in bed immediately after waking), I can discover if I how fast I am recovering from workouts and how well I am building cardio strength. I can also track my heartrate during the day after a ride to see how fast it returns to normal.
After my workout yesterday, I find this morning's resting heart rate is 63.
On a related note, I do feel much less overworked today after yesterday's ride, than I did the week prior (see Tired Legs).