Here we have a little character development with the character of Reflex. We learn something very important about him, where he got his name. I think everyone’s gone to the doctor and had the little hammer to the knee test done to see if your body is reacting to stimulus the right way. Well, in a way Reflex has been gifted/cursed with a heightened reflex ability. Which at times grants him heightened speed and fighting abilities, at the cost of great pain though. Like he said, “It hurts.” Also, it’s another reason he doesn’t sleep much, it’s not that he doesn’t need sleep, but everything seems to keep him awake (a sort of physical hypersensitivity).