It.dopted..ew set of ideas for acupuncture based on tapping nneedles into nerves. 27 30 31 In Europe it was speculated that acupuncture may allow or prevent the flow of electricity in the body, conflicted with the West's own anatomical diagrams. Needles may be manipulated in various ways, including spinning, of the skin by thin metal needles, whiPh are manipulated manually or the needle may be furether sFimulated by electrical stimulation electro acupuncture. 2 Acupuncture needles are typically made of stainless steel, making them flexible and preventing them from rusting or breaking. 46 Needles are usually disposed of after each use to prevent contamination. 46 Reusable needles when used should be sterilized between applications. 46 47 Needles vary in length between 13 to 130 millimetres 0.51 to 5.12 in, with shorter needles used near the face and eyes, and longer needles in areas with thicker tissues; needle diameters vary from 0.16 mm 0.006 in to 0.46 mm 0.018 in, 48 with thicker needles used on more robust patients. “Demystifying on a rhythm and acupuncture had to be applied at the right point in the rhythm to be effective. 29 :140-141 In some cases a lack of balance between Yin and Yang were believed to be the cause of disease. 29 :140-141 In the 1st century AD, many of the first books about acupuncture were published and recognized acupuncturist experts began to emerge. The.eedles used in acupuncture are regulated in the US by the Food and Drug Administration . 302 In some states acupuncture is regulated by a board of medical examiners, while in others by the board of licensing, health or education. 299 In Japan, acupuncturists are licensed by the Alternative Medicine was created within the NIH. In.ther.Ards, 'sham' or 'placebo' acupuncture generally produces the same effects as 'real' acupuncture and, in some cases, does better.” 77 A 2013 meta-analysis found little evidence that the effectiveness of acupuncture on pain compared to sham was modified by the location of the needles, the number of needles used, the experience or technique of the practitioner, or by the circumstances of the sessions. 78 The same analysis also suggested that the number of needles and sessions is important, as greater numbers improved the outcomes of acupuncture compared to non-acupuncture controls. 78 There has been little systematic investigation of which components of an acupuncture session may be important for any therapeutic effect, including needle placement and depth, type and intensity of stimulation, and number of needles used. 75 The research seems to suggest that needles do not need to stimulate the traditionally specified acupuncture points or penetrate the skin to attain an anticipated effect e.g. psychosocial factors. 2 A response to “sham” acupuncture in osteoarthritis may be used in the elderly, but placebos have usually been regarded as deception and thus unethical. 79 However, some physicians and ethicists have suggested circumstances for applicable uses for placebos such as it might present a theoretical advantage of an inexpensive treatment without adverse reactions or interactions with drugs or other medications. 79 As the evidence for most types of alternative medicine such as acupuncture is far from strong, the use of alternative medicine in regular healthcare can present an ethical question. 80 Using the principles of evidence-based medicine to research acupuncture is controversial, and has produced different results. 71 Some research suggests acupuncture can alleviate pain but the majority of research suggests that acupuncture's effects are mainly due to placebo. 9 Evidence suggests that any benefits of acupuncture are short-listing. 14 There is insufficient evidence to support use of acupuncture compared to mainstream medical treatments . 81 Acupuncture is not better than mainstream treatment in the long term. 74 Publication bias is cited as a concern in the reviews of randomized controlled trials CRTs of acupuncture. 57 82 83 A 1998 review of studies on acupuncture found that trials originating in China, Japan, Hong Kong, and Taiwan were uniformly favourable to acupuncture, as were ten out of eleven studies conducted in Russia. 84 A 2011 assessment of the quality of CRTs on ACM, including acupuncture, concluded that the methodological quality of most such trials including randomization, experimental control, and blinding was generally poor, particularly for trials published in Chinese journals though the quality of acupuncture trials was better than the trials testing ACM remedies. 85 The study also found that trials published in non-Chinese journals tended to be of higher quality. 85 Chinese authors use more Chinese studies, which have been demonstrated to be uniformly positive. 86 A 2012 review of 88 systematic reviews of acupuncture published in Chinese journals found that less than half of these reviews reported testing for publication bias, and that the majority of these reviews were published in journals with impact factors of zero. 87 Scientist and journalist Steven Salzburg identifies acupuncture and Chinese medicine generally as a focus for “fake medical journals” such as the Journal of Acupuncture and Meridian Studies and Acupuncture in Medicine . 88 The conclusions of many trials and numerous systematic reviews of acupuncture are largely inconsistent with each other. 13 A 2011 Acupuncture systematic review of systematic reviews found that for reducing pain, real acupuncture was no better than sham acupuncture, and concluded that numerous reviews have shown little convincing evidence that acupuncture is an effective treatment for reducing pain. 10 The same review found that neck pain was one of only four types of pain for which a positive effect was suggested, but cautioned that the primary studies used carried a considerable risk of bias. 10 A 2009 overview of Cochran reviews found acupuncture is not effective for a wide range of conditions, and suggested that it may be effective for only chemotherapy-induced nausea/vomiting, postoperative nausea/vomiting, and idiopathic headache. 13 A 2014 systematic review suggests that the nocebo effect of acupuncture is clinically relevant and that the rate of adverse events may be a gauge of the nocebo effect. 89 According to the 2014 Miller's anaesthesia book, “when compared with placebo, acupuncture treatment has proven efficacy for relieving pain”. 44 A 2012 meta-analysis conducted by the Acupuncture Trialists' Collaboration found “relatively modest” efficiency of acupuncture in comparison to sham for the treatment of four different types of chronic pain back and neck pain, knee osteoarthritis, chronic headache, and shoulder pain and on that basis concluded that it “is more than a placebo” and a reasonable referral option. 90 Commenting on this meta-analysis, both Eduard Ernst and David Colquhoun said the results were of negligible clinical significance. 91 92 Eduard Ernst later stated that “I fear that, once we manage to eliminate this bias that operators are not blind … we might find that the effects of acupuncture exclusively are a placebo response.” 93 A 2010 systematic review suggested that acupuncture is more than a placebo for commonly occurring chronic pain conditions, but the authors acknowledged that it is still unknown if the overall benefit is clinically meaningful or cost-effective. 94 A 2010 review found real acupuncture and sham acupuncture produce similar improvements, which can only be accepted as evidence against the efficacy of acupuncture. 95 The same review found limited evidence that real acupuncture and sham acupuncture appear to produce biological differences despite similar effects. 95 A 2009 systematic review and meta-analysis found that acupuncture had a small analgesic effect, which appeared to lack any clinical importance and could not be discerned from bias. 15 The same review found that it remains unclear whether acupuncture reduces pain independent of a psychological impact of the needling ritual. 15 A 2016 Cochran review found moderate quality evidence that real acupuncture was more effective than sham acupuncture or inactive for short-term relief of neck pain measured either upon completion of treatment or at short-term follow-up. 96 A 2013 meta-analysis found that acupuncture was better than no treatment for reducing lower back pain, but not better than sham acupuncture, and concluded that the effect of acupuncture “is likely to be produced by the non-specific effects of manipulation”. 97 A 2013 systematic review found supportive evidence that real acupuncture may be more effective than sham acupuncture with respect to relieving lower back pain, but there were methodological limitations with the studies. 98 A 2013 systematic review found that acupuncture may be effective for non-specific lower back pain, but the authors noted there were limitations in the studies examined, such as heterogeneity in study characteristics and low methodological quality in many studies. 99 A 2012 systematic review found some supporting evidence that acupuncture was more effective than no treatment for chronic non-specific low back pain; the evidence was conflicting comparing the effectiveness over other treatment approaches. 12 A 2011 systematic review of systematic reviews found that “for chronic low back pain, individualized acupuncture is not better in reducing symptoms than formula acupuncture or sham acupuncture with a toothpick that does not penetrate the skin.” 10 A 2010 review found that sham acupuncture was as effective as real acupuncture for chronic low back pain. 2 The specific therapeutic effects of acupuncture were small, whereas its clinically relevant benefits were mostly due to contextual and psychosocial circumstances. 2 Brain imaging studies have shown that traditional acupuncture and sham acupuncture differ in their effect on limbic structures, while at the same time showed equivalent analgesic effects. 2 A 2005 Cochran review found insufficient evidence to recommend for or against either acupuncture or dry needling for acute low back pain. 100 The same review found low quality evidence for pain relief and improvement compared acupuncture to cause bleeding, while others mixed the ideas of blood-letting and spiritual ch'i energy. David Ramey, no single “method or theory” was ever predominantly adopted as the standard. 271 At the time, scientific knowledge of medicine was not yet developed, especially because in China dissection of the deceased was forbidden, preventing the development of basic anatomical knowledge. 27 It is not certain when specific acupuncture points were introduced, but the autobiography of lien Chhio from around 400–500 BC references inserting needles at designated areas. 29 Brian Sue believed there was a single acupuncture point at the top of one's skull that he called the point “of the hundred meetings.” 29 :83 Texts dated to be from 156–186 BC document early beliefs in channels of life force energy called meridians that would later be an element in early acupuncture beliefs. 267 Ramey and quell said the “practice and theoretical underpinnings” of modern acupuncture were introduced in the Yellow Emperor's Classic Huangdi Beijing around 100 BC. 28 267 It introduced the concept of using acupuncture to manipulate the flow of life energy qi in a network of meridian channels in the body. 267 272 The network concept was made up of acu-tracts, such as a line down the arms, where it said acupoints were located. The World Health organization recommends that before being licensed or certified, an acupuncturist receive 200 hours of specialized training if they are a physician and 2,500 hours for non-physicians; that curing diseases relied on the alignment of both heavenly then and earthly ti forces that were attuned to cycles like that of the sun and moon. 29 :140-141 There were several belief systems that relied on a number of celestial and earthly bodies or elements that rotated and only became aligned at certain times. 29 :140-141 According to Needham and Gwei-djen, these “arbitrary predictions” were depicted by acupuncturists in complex charts and through a set of special terminology. 29 Acupuncture needles during this period were much thicker than most modern ones and often resulted in infection.