According to ScienceDaily Five new studies provide evidence to support simple steps we can take to prevent illness and improve our overall health. In the June issue of The American Journal of Medicine, researchers report on fish consumption to reduce the risk of colon cancer; the effectiveness ofhypnotherapy and acupuncture for smoking cessation; regular teeth cleaning to improve cardiovascular health; the effectiveness of primary care physicians in weight loss programs; and the use of low-dose aspirin to reduce cancer risk.

Mark J. Eisenberg, MD, MPH, of McGill University, in Montreal, Quebec, and colleagues report that the use of unconventional smoking cessation aids, including acupuncture and hypnotherapy, results in substantial increases of smoking cessation. A meta-analysis of 14 trials found that smokers who underwent hypnotherapy were 4.55 times more likely, and those who underwent acupuncture were 3.53 times more likely, to abstain from smoking than those who did not. Aversive smoking may also help smokers quit; however, there were no recent trials investigating this intervention

There is reasonably good evidence that acupuncture is an effective treatment for:
chronic back pain
dental pain
pain and discomfort during gastrointestinal endoscopy
headache
nausea and vomiting after an operation
pain and discomfort during oocyte retrieval (a procedure used during IVF)
osteoarthritis of the knee.

So, for your health, do acupuncture!