As in your reasons for staying are no longer easy because they keep disappearing.

[He figured that Reyes would stay for people, friendships and even family he had formed here, but otherwise, the job, the missions were just filler. After all, they had a mission back home, so the ones here weren't any more pressing than there.

He nodded his head, remember his group of volunteers. Many of them had gone out drinking before the testing phase, but Jack had not. He'd been assigned watch duty that night, so he had to be sober.]

Felt like every fiber of your person was under pressure from all directions.