An effect which, instead of giving disobedience, grants bonuses to pain thresh-hold, movement speed, ability of work, fighting skills, ect. It would be rare of course, and perhaps wouldn't even reset stress like mental breaks normally do, but could be based on the colony situation. For instance if there is a large raid, and reason for people to fight, there might be a larger chance for someone in bad shape to go into the "zone", where they will ignore pain and work harder, to give your colony a fighting chance.
Yeah, i was thinking of a simple mood buff called "adrenaline", if your guys attack or were attacked in x amount of time. But the "zone" should work as well
"Yea, I'm in da zone!"
"Shut up. You're in the home zone. Get to work."