- Researchers analyzed data from 29 clinical trials
- They conclude the pain relief is partly real -- not the placebo effect
- Acupuncture involves placing needles in specific locations to treat ailments
- Some believe the majority of relief is still a placebo effect
(Health.com)Many people with chronic pain swear by acupuncture, but skeptics of the ancient needle-based treatment have long claimed that it's little more than an elaborate placebo.