Effects of psychotherapy on cancer survival.

The possibility that psychotherapy could extend survival time for cancer patients has attracted attention among clinical investigators interested in the mind-body connection, among cancer patients seeking the best possible outcome and among the general public. A small number of randomized trials have been conducted, and they have produced conflicting results. Does emotional support affect the course of cancer? What physiological pathways might mediate such an effect? Given what we now know, should we change the standard of care for cancer patients?