Your circulatory system has difficulty maintaining its essential core temperature on its own. You must spend at least one hour (preferably more whenever possible, but one is sufficient) out of every twenty-four basking in a heated environment, under a strong sun, or against a heated object. If you don’t, you suffer a -2 penalty to Strength, Dexterity, and Wisdom until you can to do so again. These penalties stack every 24 hours, starting 24 hours after the last time you were in a heated environment. If any of your abilities reaches 3, you fall into a comatose state. If they all reach 0, then you die.
This Comp is not incompatible with powers or special abilities that render the character resistant to damage from cold-based sources. However, such resistances will not change the affects of the Comp.