Normally I take a half-day on Friday, but this week was short due to the holiday on Monday. So I worked a full day and biked back on the north side of Lake Mendota. I decided that Indian food sounded pretty good and did a few additional lazy laps around Pheasant Branch to obtain the Calories necessary. I am wondering if humidity has a role in my cycling performance. This evenings ride had a heartrate of 137 BPM, which is pretty miserable, unlike last week when I averaged 150 BPM on pretty much the same ride. Sounds like I have data to track :)