One form of discomfort that sharpens me is the sensation of sleep deprivation kept at bay by caffeine. It has a dissociative effect that I find helps me conce

One form of discomfort that sharpens me is the sensation of sleep deprivation kept at bay by caffeine. It has a dissociative effect that I find helps me concentrate. Reaching that state probably takes a toll on my body though. Perhaps the effects of discomfort on concentration are malleable, not inherit traits of the individual. Maybe, with the right kind of expectations and mindset, I could make the sensation of hunger work for me instead of against me.