From Cybersphere Wiki
Reiber's mouth was as cracked and sandy as the wastes that spread away in all directions. An empty canteen reminded him of how long he'd managed to go without water. He'd lost track of whether the horizon's shimmering was a mirage or aftereffects of the derm overdose he'd somehow survived earlier that afternoon. The tourniquet had come lose, and he was bleeding...
How tough your character is. A high endurance means your character is probably in robust health, and can take some significant damage before going down.