When traveling for to long (more than 6 to 8 hours in a day), or you haven't gotten 6 hours of sleep or light Rest, you can become Exhausted.
Basically this means a creature becomes very tired. The GM can apply stacks of Maimed, or Exhausted to a creature that is effected by Exhausted.
Trying to complete a Long Rest, by Resting in heavy or medium armor, can cause Exhausted.
While Exhausted, you cannot remove stacks of Maimed.
GM Note: What makes Undead so dangerous is that they can march almost endlessly and require no food or sleep, and are not susceptible to becoming Exhausted.
These sliders set site audio only, so you can mix against Discord and other apps (phone volume still caps everything).