A few weeks ago, I was running early in the morning in Arizona. I probably should have waited for it to get light out, but I had a busy day ahead of me and wanted to squeeze it in. I even remember thinking as I left, as I turned on my woefully insufficient flashlight on my phone, I hope this isn’t a mistake. The answer came not three steps later, when I went down and my ankle rolled hard to the left. After washing off my scrapes and testing the ankle, I decided to push through the run and g...