At the root of insomnia is our nervous systems familiarity with being in an activated state and perceived danger of entering a restful state. The brain plays a big part in this through its discomfort with dealing with uncertainty. Instead of easily dropping into a state of rest, the brain starts trying to solve problems and resolve anything that is uncertain of or worrying about. Although insomnia is not a condition associated with pain in the usual sense, beneath the restlessness there is a learned aversion to the sensations associated with rest and uncertainty. Chronic pain and Insomnia share a root-cause enabling a PRT practitioner to effectively treat insomnia using many of the tools normally applied to cases of chronic pain.