Kate McIver, of the Pain Research Institute at Liverpool University, said work done there on helping amputees create mental images of pain-free limbs - which operated on the same basic principle as the US research - had also proved effective.
That means focussing on objectives like freedom from pain and discomfort, or maintaining mental awareness for as long as possible, or getting out with family once in a while.
We now know that underestimating the pain and difficulties the future undoubtedly holds lowers stress and anxiety, consequently enhancing physical and mental health.
The combination of the mental activity and the external stimulus is believed to aid in reprocessing traumatic memories in ways that reduce their pain and damage to a person's life.