By Dr Mike
Characters with this attribute have healing capabilities limited only by their energy levels. At full energy levels, they heal 8 points of damage per second - this drops in proportion to the percentage of energy filling their top energy bar. If they have less than two full energy bars they cannot heal - forcing the characters to rest to recover health properly.
Each health point recovered cosst 2 energy points, so the full healing rate at rest is determined by their energy stat.