You check off those fatigue factors during the adventure phase and they make it harder to recover from the Exhausted condition.
Yes.
You can get hungry and thirsty as part of a failed test, just like Mouse Guard. But there’s also a turn tracker in TB. All characters get hungry and thirsty every few turns. It simulates the strain of exploration devilishly well.
Best,
-Luke
*I assume you’re the Mental Organism Designed Only for Coffee