A couple of days ago the morning paper carried a story about acupuncture. More specifically, a story saying that researchers had shown how acupuncture works to reduce pain. The study was done in mice (& so presumably used very small needles) & found that 'needling' was followed by release of adenosine, a substance which has been known for some time to reduce sensations of pain.
It sounded interesting & I filed it away mentally for further examination. Unfortunately time is passing & I haven't a huge amount of it to spare. Fortunately Orac has done his usual thorough job of reviewing the original research paper (& identifying some of the more overheated reactions to the publication). So go over there to read his review & join in the discussion :-)