Day 3,459—a Little Cold—

I'm not sure if my new watch accurately measures my heart rate or if it's still calibrating. However, I didn't want it to exceed 150, so I walked to lower it faster. When I was going downhill, I started sprinting to have one moment of pushing myself on this run. I tried to glide up the hill but I could hear my feet hitting the ground. Today is the first day I'm wearing new shoes. I want to see how long they last since I bought three pairs.