Hyperthermia
You have been subjected to extreme heat for too long, and your body is overwhelmed. When you suffer Hyperthermia, increase your level of Hyperthermia by the amount specified. The effects of Hyperthermia are given in the following table:
Effects of Hyperthermia
Special: Creatures immune to Fire are immune to Hyperthermia.
Ongoing Hyperthermia
Ongoing Hyperthermia effects work the same way as Ongoing Damage, with hyperthermia occurring immediately if the initial save is failed.
Removing Hyperthermia
Hyperthermia can be alleviated by moving to a cool environment, drinking cool fluids, and resting. Each hour spent resting in a cool environment reduces hyperthermia by one level.
See Exposure for more information.