In 2017, 47-year-old Li Bijuan twisted her right ankle while walking down the stairs. She felt intense pain in her ankle but believed it would go away soon—like any other sprain. However, when it didn ...

A decade ago, Jackson pulled me aside at the end of drill and asked me, “Hey, Sergeant… how do you do it… like, deal with all the pain?” I didn’t know how to answer then, but I don’t think he would ...