The user can manipulate healing and healing process, speeding any or all aspects of healing to the point of regenerating, or slowing and blocking healing even if the victim possesses healing abilities such as Regenerative Healing Factor. They can sense the health of anyone and the causes of wounds, diseases or injuries, the health history and possibly even genetic weaknesses and predispositions. Users may be able learn to reopen old wounds and re-inflict old illnesses and conditions, or even inflict completely new ones.