Tai Chi helps arthritis in the knees

Notice how they mention it is believed it is the mental
aspects of doing it that they believe help create the
change, i.e. entraining a new reality through
tai chi/qigong/meditation.

Nothing new here (for us) of course, but good to see
that western science is acknowledging it . . . S

http://us.cnn.com/video/?/video/health/2009/10/29/tai.chi.for.the.knees.cnn