Constitution influences a few secondary stats:
- Fatigue: each point spent on constitution increases the fatigue pool (+2). A character recovers from Fatigue continuously.
- Heal rate: this derived statistic is somewhat self-explanatory – the character's body heals at a rate proportional to this number. Hit points return only during sleep.
- Poison recovery rate: when poisoned, a character's body will subtract a number of poison units from his or her poison level every few minutes – the amount is proportional to this number. If the character rests, the number of units eliminated every few minutes will double: a body freed from other distractions will devote all available resources to purging itself of the offending toxin.