Healing power

The healing power is an ability that certain evolved humans such as the Ancients have demonstrated. Through a largely unknown process, they are able to almost rapidly heal themselves and others of potentially fatal infections and injuries. However, to heal another greatly weakens the healer. Ayiana was able to heal most of those who found her under the ice of Antarctica near the Stargate from the plague she was carrying. However, she lost conciousness before she could heal Jack O'Neill, and died soon after.

After downloading the Ancient's repository of knowledge a second time, O'Neill was able to heal Bra'tac of a knife wound incured from Ronan.

Hedda was one of the few of the people of the Cloister who could heal others, but she appeared to experience no debilitating side effects.