Neurotronics.org

I’ve definitely done this myself in the past. I believe it was an episode of Kung Fu: The Legend Continues that contained the line “let the pain become part of you.”

Science is beginning to investigate and support the role of therapies such as biofeedback and meditation in pain control. The idea that the mind has power over the body may be especially useful to chronic pain patients who often find themselves without satisfactory medical treatments.

http://www.health.com/health/condition-article/0,,20189613_1,00.html