Walked and Walked and...

Yesterday I went for a walk for 42 minutes. Not fast or hard. At the head of the pond I heard a rustling noise and looked up, and a herd of deer were running across the field and up the hill at the top of the pond. Today I walked for 35 minutes, doing the four laps around the Knoll park again. My heart rate was higher today than yesterday. I've had a cold for a few days, so maybe it's because my heart had to work harder to get oxygen through my blood. Or maybe it's because I'm getting over the cold and was able to go faster. Not sure, but it felt good to get out, even though I'm tired now.