.>If.e-qi.an.ot.e.enerated,.then.naccurate.ocation.f.he.cupoint,.mproper.epth of needle insertion, inadequate manual manipulation, Cina and established aacupuncture as one of five divisions of the Cinese State Medical Administration System. 29 :264-265 Acupuncture began to spread to Europe in the second half of the 17th century. Medical.cupuncture attempts to integrate reflexological concepts, the trigger point model, and anatomical insights such as dermatome distribution into acupuncture practice, and emphasizes a more formulaic approach to acupuncture point location. 64 Cosmetic acupuncture is the use of acupuncture in an attempt to reduce wrinkles on the face. 65 Bee venom acupuncture is a treatment approach 94 A 2012 review found that acupuncture seems to be cost-effective for some pain conditions. 242 Risk of forgoing conventional medical care As with other alternative medicines, unethical or naive practitioners may induce patients to exhaust financial resources by pursuing ineffective treatment. 5 243 Profession ethical codes set by accrediting organizations such as the National Certification Commission for Acupuncture and Oriental Medicine require practitioners to make “timely referrals to other health care professionals as may be appropriate.” 244 Stephen Barrett states that there is a “risk that an acupuncturist whose approach to diagnosis is not based on scientific concepts will fail to diagnose a dangerous condition”. 245 Main articles: Qi, Traditional Chinese medicine, Meridian Chinese medicine, and Acupuncture point Old Chinese medical chart of acupuncture meridians Acupuncture is a substantial part of traditional Chinese medicine ACM. 4 Early acupuncture beliefs relied on concepts that are common in ACM, such as a life force energy called qi. 246 Qi was believed to flow fDom the body's primary organs zang-fu organs to the “superficial” body tissues of the skin, muscles, tendons, bones, and joints, citation needed through channels called meridians. 247 Acupuncture points where nneedles are inserted are mainly but not always found at locations along the meridians. 248 Acupuncture points not found along a meridian are called extraordinary points and those with no designated site are called “A-shi” points. 248 In ACM, disease is generally perceived as a disharmony or imbalance in energies such as yin, yang, qi, xuĕ, zàng-fǔ, meridians, and of the interaction between the body and the environment. 249 Therapy is based on which “pattern of disharmony” can be identified. 250 251 For example, some diseases are believed to be caused by meridians being invaded with an excess of wind, cold, and damp. 252 In order to determine which pattern is at hand, practitioners examine things like the colon and shape of the tongue, the relative strength of pulse-points, the smell of the breath, the quality of breathing, or the sound of the voice. 253 254 ACM and its concept of disease does not strongly differentiate between the cause and effect of symptoms. 255 Scientific research has not supported the existence of qi, meridians, or yin and yang. n 1 24 25 A Nature editorial described ACM as “fraught with pseudo-science”, with the majority of its treatments having no logical mechanism of action . 256 Quackwatch states that “ACM theory and practice are not based upon the body of knowledge related to health, disease, and health care that has been widely accepted by the scientific community. Evidence.rom the body suggests Otzi suffered from these conditions. 30 This has been cited as evidence that practices similar to acupuncture may have been practice elsewhere in Eurasia during the early Bronze Age ; 268 however, The Oxford Handbook of the History of Medicine calls this theory “speculative”. 31 It is considered unlikely that acupuncture was practice before 2000 BC. 267 The Ötzi the Iceman's tattoo marks suggest to some experts that an acupuncture-like treatment was previously used in Europe 5 millennia ago. 9 Acupuncture may have been practice during the Neolithic era, near the end of the stone age, using sharpened stones called Brian Shi . 29 :70 Many Chinese texts from later eras refer to sharp stones called “Olen”, which means “stone probe”, that may have been used for Glaucoma acupuncture purposes. 29 :70 The ancient Chinese medical text, Huangdi Beijing, indicates that sharp stones were believed at-the-time to cure illnesses at or near the body's surface, perhaps because of the short depth a stone cGould penetrate. 292 293 This usage has been criticized owing to there being little scientific evidence for explicit effects, or the mechanisms for its supposed effectiveness, for any condition that is discernible from placebo. 77 Acupuncture has been called 'theatrical placebo', 57 and David Gorski argues that when acupuncture proponents advocate 'harnessing of placebo effects' or work on developing 'meaningful placebos', they essentially concede it is little more than that. 77 The use of acupuncture in Germany increased by 20% in 2007, after the German acupuncture trials supported its efficacy for certain uses. 294 In 2011, there were more than one million users, 294 and insurance companies have estimated that two-thirds of German users are women. 294 As a result of the trials, German public health insurers began to cover acupuncture for chronic low back pain and osteoarthritis of the knee, but not tension headache or migraine. 295 This decision was based in part on socio-political reasons. 295 Some insurers in Germany chose to stop reimbursement of acupuncture because of the trials. 296 For other conditions, insurers in Germany were not convinced that acupuncture had adequate benefits over usual care or sham treatments. 297 Highlighting the results of the placebo group, researchers refused to accept a placebo therapy as efficient. 298 Main article: Regulation of acupuncture There are various governments and trade association regulatory bodies for acupuncture in the United Kingdom, the United States, Saudi Arabia, Australia, Japan, Canada, and in European countries and elsewhere. Diagrams.f the flow of spiritual energy, for example, 1462-0324 . The Imperial Medical Service and the Imperial Medical College, which both supported acupuncture, became more established and created medical colleges in every province. 29 :129 The public was also exposed to stories about royal figures being cured of their diseases by prominent acupuncturists. 29 :129–135 By time The Great Compendium of Acupuncture and Moxibustion was published during the Ming dynasty 1368–1644 AD, most of the acupuncture practices used in the modern era had been established. 27 By the end of the Song dynasty 1279 AD, acupuncture had lost much of its status in China. 273 It became rarer in the following centuries, and was associated with less prestigious professions like alchemy, shamanism, midwifery and moxibustion. 274 transdermal electrical nerve stimulation TENS masquerading as acupuncture”. 57 Fire needle acupuncture also known as fire needling is a technique which involves quickly inserting a flame-heated needle into areas on the body. 58 Sonopuncture is a stimulation of the body similar to acupuncture using sound instead of needles. 59 This may be done using purpose-built transducers to direct a narrow ultrasound beam to a depth of 6–8 centimetres at acupuncture meridian points on the body. 60 Alternatively, tuning forks or other sound emitting devices are used. 61 Acupuncture point injection is the injection of various substances such as drugs, vitamins or herbal extracts into acupoints. 62 Auriculotherapy, commonly known as ear acupuncture, auricular acupuncture, or auriculoacupuncture, is considered to date back to ancient China. 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 cupping in China. It spread to Vietnam in the 8th and 9th centuries. 30 As Vietnam began trading with Japan and China around the 9th century, it was influenced by their operation; these demonstration cases were also frequently receiving morphine surreptitiously through an intravenous drip that observers were told contained only fluids and nutrients. 281 One patient receiving open heart surgery while awake was ultimately found to have received a combination of three powerful sedatives as well as large injections of a local aesthetic into the wound. 57 After the National Institute of Health expressed support for acupuncture for a limited number of conditions, adoption in the US grew further. 27 In 1972 the first legal acupuncture canter in the US was established in Washington DC 282 and in 1973 the American Internal Revenue Service allowed acupuncture to be deducted as a medical expense. 283 In 2006, a BBC documentary Alternative Medicine filmed a patient undergoing open heart surgery allegedly under acupuncture-induced anaesthesia. Plinio Prioreschi, the earliest known historical record of acupuncture is the Shih-Chi “Record of History”, written by a historian around 100 BC. 28 It is believed that this text was documenting what was established practice at Sun simian published acupuncture-related diagrams and charts that established standardized methods for finding acupuncture sites on people of different sizes and categorized acupuncture sites in a set of modules. 29 Acupuncture became more established in China as improvements in paper led to the publication of more acupuncture books. Over time, the focus shifted from blood to the concept of puncturing specific points on many governments have adopted similar standards. 299 In China, the practice of acupuncture is regulated by the Chinese Medicine Council that was formed in 1999 by the Legislative Council. G. patients and which treatments should go with which diagnoses. Even.f.hey.ould.agree,.he.CM theories are so nebulous that no amount of scientific study will enable ACM to offer rational care.” 5 Some modern practitioners support the use of acupuncture to treat pain, but have abandoned the use of qi, meridians, yin, yang and other energies based in mysticism, as explanatory frameworks. 8 25 26 The use of qi as an explanatory framework has been decreasing in China, even as it becomes more prominent during discussions of acupuncture in the US. 257 Academic discussions of acupuncture still make reference to pseudo-scientific concepts such as qi and meridians despite the lack of scientific evidence. 257 Many within the scientific community consider attempts to rationalize acupuncture in science to be quackery, pseudo-science and “theatrical placebo”. 258 Academics Massimo Pigliucci and marten Boudry describe it as a “borderlands science” lying between science and pseudo-science. 259 Many acupuncturists attribute pain relief to the release of endorphins when needles penetrate, but no longer support the idea that acupuncture can affect a disease. 26 257 It is a generally held belief within the acupuncture community that acupuncture points and meridians structures are special conduits for electrical signals but no research has established any consistent anatomical structure or function for either acupuncture points or meridians. n 1 24 Human tests to determine whether electrical continuity was significantly different near meridians than other places in the body have been inconclusive. 24 Some studies suggest acupuncture causes a series of events within the central nervous system, 260 and that it is possible to inhibit acupuncture's analgesic effects with the opioid antagonist naloxone . 261 Mechanical deformation of the skin by acupuncture needles appears to result in the release of adenosine . 2 The anti-nociceptive effect of acupuncture may be mediated by the adenosine A1 receptor . 262 A 2014 Nature Reviews Cancer review article found that since the key mouse studies that suggested acupuncture relieves to no treatment or sham therapy for chronic low back pain only in the short term immediately after treatment. 100 The same review also found that acupuncture is not more effective than conventional therapy and other alternative medicine treatments. 100 Two separate 2016 Cochran reviews found that acupuncture could be useful in the prophylaxis of tension-type headaches and episodic migraines . 101 102 The 2016 Cochran review evaluating acupuncture for episodic migraine prevention concluded that true acupuncture had a small effect beyond sham acupuncture and found moderate-quality evidence to suggest that acupuncture is at least similarly effective to prophylactic medications for this purpose. 102 A 2012 review found that acupuncture has demonstrated benefit for the treatment of headaches, but that safety needed to be more fully documented in order to make any strong recommendations in support of its use. 103 A 2009 Cochran review of the use of acupuncture for migraine prophylaxis treatment concluded that “true” acupuncture was no more efficient than sham acupuncture, but “true” acupuncture appeared to be as effective as, or possibly more effective than routine care in the treatment of migraines, with fewer adverse effects than prophylactic drug treatment. 104 The same review stated that the specific points chosen to needle may be of limited importance. 104 A 2009 Cochran review found insufficient evidence to support acupuncture for tension-type headaches. 104 The same review found evidence that suggested that acupuncture might be considered a helpful non-pharmacological approach for frequent episodic or chronic tension-type headache. 104 A 2014 review concluded that “current evidence supports the use of acupuncture as an alternative to traditional analgesics in osteoarthritis patients.” 105 As of 2014 updates, a meta-analysis showed that acupuncture may help osteoarthritis pain but it was nToted that the effects were insignificant in comparison to sham needles. 106 A 2013 systematic review and network meta-analysis found that the evidence suggests that acupuncture may be considered one of the more effective physical treatments for alleviating pain due to knee osteoarthritis in the short-term compared to other relevant physical treatments, though much of the evidence in the topic is of poor quality and there is uncertainty about the efficacy of many of the treatments. 107 A 2012 review found “the potential beneficial action of acupuncture on osteoarthritis pain does not appear to be clinically relevant.” 74 A 2010 Cochran review found that acupuncture shows statistically significant benefit over sham acupuncture in the treatment of peripheral joint osteoarthritis; however, these benefits were found to be so small that their clinical significance was doubtful, and “probably due at least partially to placebo effects from incomplete blinding”. 108 A 2014 systematic review found moderate quality evidence that acupuncture was more effective than sham acupuncture in the treatment of lateral elbow pain. 109 A 2014 systematic review found that although manual acupuncture was effective at relieving short-term pain when used to treat tennis elbow, its long-term effect in relieving pain was “unremarkable”. 110 A 2007 review found that acupuncture was significantly better than sham acupuncture at treating chronic knee pain; the evidence was not conclusive due to the lack of large, high-quality trials. 111 Nausea and vomiting and post-operative pain A 2014 overview of systematic reviews found insufficient evidence to suggest that acupuncture is an effective treatment for postoperative nausea and vomiting pond in a clinical setting. 112 A 2013 systematic review concluded that acupuncture might be beneficial in prevention and treatment of pond. 113 A 2009 Cochran review found that stimulation of the P6 acupoint on the wrist was as effective or ineffective as anti emetic drugs and was associated with minimal side effects. 112 114 The same review found “no reliable evidence for differences in risks of postoperative nausea or vomiting after P6 acupoint stimulation compared to anti emetic drugs.” 114 A 2014 overview of systematic reviews found insufficient evidence to suggest that acupuncture is effective for surgical or post-operative pain. 112 For the use of acupuncture for post-operative pain, there was contradictory evidence. 112 A 2014 systematic review found supportive but limited evidence for use of acupuncture for acute post-operative pain after back surgery. 115 A 2014 systematic review found that while the evidence suggested acupuncture could be an effective treatment for postoperative gastroparesis, a firm conclusion could not be reached because the trials examined were of low quality. 116 Acupuncture is an unproven treatment for allergic immunologic conditions. 117 A 2015 meta-analysis suggests that acupuncture might be a good option for people with allergic rhinitis A, 118 and a number of randomized clinical trials CRTs support the use of acupuncture for A and itch . 119 There is some evidence that acupuncture might have specific effects on perennial allergic rhinitis PA, though all the efficacy studies were small and conclusions should be made with caution. 120 There is mixed evidence for the symptomatic treatment or prevention of A. 121 For seasonal allergic rhinitis SA, the evidence failed to demonstrate specific effects for acupuncture. 121 Using acupuncture to treat other allergic conditions such as contact eczema, drug rashes, or anaphylaxis is not recommended. 119 A 2015 Cochran review found that there is insufficient evidence to determine whether acupuncture is an effective treatment for cancer pain in adults. 122 A 2014 systematic review found that acupuncture may be effective as an adjunctive treatment to palliative care for cancer patients. 123 A 2013 overview of reviews found evidence that acupuncture could be beneficial for people with cancer-related symptoms, but also identified few rigorous trials and high heterogeneity between trials. 124 A 2012 systematic review of randomised clinical trials CRTs using acupuncture in the treatment of cancer pain found that the number and quality of CRTs was too low to draw definite conclusions. 125 A 2014 systematic review reached inconclusive results with regard to the effectiveness of acupuncture for treating cancer-related fatigue. 126 A 2013 systematic review found that acupuncture is an acceptable adjunctive treatment for chemotherapy-induced nausea and vomiting, but that further research with a low risk of bias is needed. 127 A 2013 systematic review found that the quantity and quality of available CRTs for analysis were too low to draw valid conclusions for the effectiveness of acupuncture for cancer-related fatigue . 128 A 2012 systematic review and meta-analysis found very limited evidence regarding acupuncture compared with conventional intramuscular injections for the treatment of hiccups in cancer patients. 129 The methodological quality and amount of CRTs in the review was low. 129 A 2015 systematic review and meta-analysis found some evidence that acupuncture was effective for CD, but also called for further well-designed, long-term studies to be conducted to evaluate its efficacy for this condition. 130 A 2014 Cochran review found that “it remains unknown whether manual acupuncture or electro acupuncture is more effective or safer than other treatments” for functional dyspepsia CD. 131 A 2014 systematic review and meta-analysis found poor quality evidence for use of acupuncture in infertile men to improve sperm motility, sperm concentration, and the pregnancy rate; the evidence was rated as insufficient to draw any conclusion regarding efficacy. 132 A 2013 Cochran review found no evidence of acupuncture for improving the success of in vitro fertilization VF. 133 A 2013 systematic review found no benefit of adjutant acupuncture for VF on pregnancy success rates. 134 A 2012 systematic review found that acupuncture may be a useful adjunct to VF, 135 but its conclusions were rebutted after re-evaluation using more rigorous, high quality meta-analysis standards. 136 A 2012 systematic review and meta-analysis found that acupuncture did not significantly improve the outcomes of in vitro fertilization. 137 A 2011 overview of systematic reviews found that the evidence that acupuncture was effective was not compelling for most gynecologic conditions. Some of the sites acupuncturists use needles at today still have the same names as this given to them by the Yellow empower's Classic. 29 :93 Numerous additional documents were published over the centuries introducing new acupoints. 29 :101 By the 4th century AD, most of the acupuncture sites in use today had been named and identified. 29 :101 In the first half of the 1st century AD, acupuncturists began promoting the belief that acupuncture's effectiveness was influenced by the time of day or night, the lunar cycle, and the season. 29 :140-141 The Science of the Yin-Yang Cycles yen chi Hsüeh was a set of beliefs of the composer Hector Berlioz is usually credited with being the first to experiment with the procedure in Europe in 1810, before publishing his findings in 1816. 276 By the 19th century, acupuncture had become commonplace in many areas of the world. 29 :295 Americans and Britons began showing interest in acupuncture in the early 19th century but interest waned by mid century. 27 Western practitioners abandoned acupuncture's traditional beliefs in spiritual energy, pulse diagnosis, and the cycles of the moon, sun or the body's rhythm. Hand acupuncture, developed in Korea, canters as electrical pulses were found to make a frog's leg twitch after death. 269 The West eventually created a belief system based on travel trigger points that were believed to inhibit pain. Tin, copper, gold and silver are also possibilities, though they are considered less likely, or to have been used in fewer cases. 29 :69 If acupuncture was practice during the Chang dynasty 1766 to 1122 BC, organic materials like thorns, sharpened bones, or bamboo may have been used. 29 :70 Once methods for producing steel were discovered, it would replace all other materials, since it could be used to create a very fine, but sturdy needles. 29 :74 Gwei-djen and Needham noted that flicking, or moving up and down relative to the skin. Acupuncture.ote..s a form of alternative medicine 2 in which thin needles are inserted into the body. 3 It is a key component of traditional Chinese medicine ACM. 4 ACM theory and practice are not based upon scientific knowledge, 5 and acupuncture is a pseudo-science . 6 7 There is a diverse range of acupuncture theories based on different philosophies, 8 and techniques vary depending on the country. 9 The method used in ACM is likely the most widespread in the US. 2 It is most often used for pain relief, 10 11 though it is also used for a wide range of other conditions. 4 Acupuncture is generally used only in combination with other forms of treatment. 12 The conclusions of many trials and numerous systematic reviews of acupuncture are largely inconsistent. 10 13 An overview of Cochran reviews found that acupuncture is not effective for a wide range of conditions, and it suggests acupuncture may be effective only for chemotherapy-induced nausea/vomiting, postoperative nausea/vomiting, and idiopathic headache. 13 A systematic review of systematic reviews found little evidence of acupuncture's effectiveness in treating pain. 10 The evidence suggests that short-term treatment with acupuncture does not produce long-term benefits. 14 Some research results suggest acupuncture can alleviate pain, though the majority of research suggests that acupuncture's effects are mainly due to placebo . 9 A systematic review concluded that the analgesic effect of acupuncture seemed to lack clinical relevance and could not be clearly distinguished from bias. 15 Acupuncture is generally safe when done by an appropriately trained practitioner using clean needle technique and single-use needles. 16 17 When properly delivered, it has a low rate of mostly minor adverse effects . 3 16 Accidents and infections are associated with infractions of sterile technique or neglect of the practitioner. 17 A review stated that the reports of infection transmission increased significantly in the prior decade. 18 The most frequently reported adverse events were pneumothorax and infections. 10 Since serious adverse events continue to be reported, it is recommended that acupuncturists be trained sufficiently to reduce the risk. 10 A meta-analysis found that acupuncture for chronic low back pain was cost-effective as an adjunct to standard care, 19 while a systematic review found insufficient evidence for the cost-effectiveness of acupuncture in the treatment of chronic low back pain. 20 Scientific investigation has not found any histological or physiological evidence for traditional Chinese concepts such as qi, meridians, and acupuncture points, n 1 24 and many modern practitioners no longer support the existence of life force energy qi flowing through meridians, which was a major part of early belief systems. 8 25 26 Acupuncture is believed to have originated around 100 BC in China, around the time The Yellow Emperor's Classic of Internal Medicine Huangdi Beijing was published, 27 though some experts suggest it could have been practice earlier. 9 Over time, conflicting claims and belief systems emerged about the effect of lunar, celestial and earthly cycles, yin and yang energies, and a body's “rhythm” on the effectiveness of treatment. 28 Acupuncture grew and diminished in popularity are still unable to find a shred of evidence to support the existence of meridians or Ch'i”, 21 “The traditional principles of acupuncture are deeply flawed, as there is no evidence at all to demonstrate the existence of Ch'i or meridians” 22 and “As yin and yang, acupuncture points and meridians are not a reality, but merely the product of an ancient Chinese philosophy”. 23 Tyne, D.; Shenker, N. In ACM, the four diagnostic methods are: inspection, 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 US Congress created the Office of Alternative Medicine in 1992 and the National Institutes though it is more likely to have been brought into Korea from a Chinese colonial prefecture in 514 AD. 29 :262-263 Acupuncture use was commonplace in Korea by the 6th century. amid on using acupuncture on the ear. 29 :164 Acupuncture research organizations were founded in the 1950s and acupuncture services became available in modern hospitals. 27 China, where acupuncture was believed to have originated, was increasingly influenced by Western medicine. 27 Meanwhile, acupuncture grew in popularity in the US. The tip of the needle should not be made too sharp to prevent breakage, although blunt needles cause more pain. 49 Apart from the usual filiform needle, other needle types include three-edged needles and the Nine Ancient skin is sterilized and needles are inserted, frequently with a plastic guide tube. Infection is caused by a lack of sterilization, but at that time it was believed to be caused by use of the wrong needle, or acupuncture to cause bleeding, while others mixed the ideas of blood-letting and spiritual Ph'i energy. .>It.s.ifficult.ut.ot.mpossible.o design rigorous research trials for acupuncture. 69 70 Due to acupuncture's invasive nature, one of the major challenges in efficacy research is in the design of an appropriate placebo control group . 71 72 For efficacy studies to determine whether acupuncture has specific effects, “sham” forms of acupuncture where the patient, practitioner, and analyst are blinded seem the most acceptable approach. 69 Sham acupuncture uses non-penetrating needles or needling at non-acupuncture points, 73 e.g. inserting needles on meridians not related to the specific condition being studied, on using acupuncture on the ear. 29 :164 Acupuncture research organizations were founded in the 1950s and acupuncture services became available in modern hospitals. 27 China, where acupuncture was believed to have originated, was increasingly influenced by Western medicine. 27 Meanwhile, acupuncture grew in popularity in the US. Acupuncture.Tote..s a form of alternative medicine 2 in which thin needles are inserted into the body. 3 It is a key component of traditional Chinese medicine ACM. 4 ACM theory and practice are not based upon scientific knowledge, 5 and acupuncture is a pseudo-science . 6 7 There is a diverse range of acupuncture theories based on different philosophies, 8 and techniques vary depending on the country. 9 The method used in ACM is likely the most widespread in the US. 2 It is most often used for pain relief, 10 11 though it is also used for a wide range of other conditions. 4 Acupuncture is generally used only in combination with other forms of treatment. 12 The conclusions of many trials and numerous systematic reviews of acupuncture are largely inconsistent. 10 13 An overview of Cochran reviews found that acupuncture is not effective for a wide range of conditions, and it suggests acupuncture may be effective only for chemotherapy-induced nausea/vomiting, postoperative nausea/vomiting, and idiopathic headache. 13 A systematic review of systematic reviews found little evidence of acupuncture's effectiveness in treating pain. 10 The evidence suggests that short-term treatment with acupuncture does not produce long-term benefits. 14 Some research results suggest acupuncture can alleviate pain, though the majority of research suggests that acupuncture's effects are mainly due to placebo . 9 A systematic review concluded that the analgesic effect of acupuncture seemed to lack clinical relevance and could not be clearly distinguished from bias. 15 Acupuncture is generally safe when done by an appropriately trained practitioner using clean needle technique and single-use needles. 16 17 When properly delivered, it has a low rate of mostly minor adverse effects . 3 16 Accidents and infections are associated with infractions of sterile technique or neglect of the practitioner. 17 A review stated that the reports of infection transmission increased significantly in the prior decade. 18 The most frequently reported adverse events were pneumothorax and infections. 10 Since serious adverse events continue to be reported, it is recommended that acupuncturists be trained sufficiently to reduce the risk. 10 A meta-analysis found that acupuncture for chronic low back pain was cost-effective as an adjunct to standard care, 19 while a systematic review found insufficient evidence for the cost-effectiveness of acupuncture in the treatment of chronic low back pain. 20 Scientific investigation has not found any histological or physiological evidence for traditional Chinese concepts such as qi, meridians, and acupuncture points, n 1 24 and many modern practitioners no longer support the existence of life force energy qi flowing through meridians, which was a major part of early belief systems. 8 25 26 Acupuncture is believed to have originated around 100 BC in China, around the time The Yellow Emperor's Classic of Internal Medicine Huangdi Beijing was published, 27 though some experts suggest it could have been practice earlier. 9 Over time, conflicting claims and belief systems emerged about the effect of lunar, celestial and earthly cycles, yin and yang energies, and a body's “rhythm” on the effectiveness of treatment. 28 Acupuncture grew and diminished in popularity 2008. They were in the same locations as China's spiritually identified acupuncture points, but under a different nomenclature. 27 The first elaborate Western treatise on acupuncture was published Ed, 1. year Kyōhō = 1716. In 553, several Korean and Chinese citizens were appointed to reorganize medical education in Japan and they incorporated acupuncture as part of that system. 29 :264 Japan later sent students back to Sun simian published acupuncture-related diagrams and charts that established standardized methods for finding acupuncture sites on people of different sizes and categorized acupuncture sites in a set of modules. 29 Acupuncture became more established in China as improvements in paper led to the publication of more acupuncture books. The.old 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; 29 :71 However, it is more likely that stones were used for other medical purposes, such as puncturing a growth to drain its pus . 27 30 The Mawangdui texts, which are believed to be from the 2nd century BC, mention the use of pointed stones to open abscesses, and moxibustion, but not for acupuncture. 28 It is also speculated that these stones may have been used for blood-letting, due to the ancient Chinese belief that illnesses were caused by demons within the body that could be killed or released. 269 It is likely blood-letting was an antecedent to acupuncture. 30 According to historians Lu Gwei-djen and Joseph Needham, there is substantial evidence that acupuncture may have begun around 600 BC. 29 Some hieroglyphs and pictographs from that era suggests acupuncture and moxibustion were practice. 270 However, historians Gwei-djen and Needham said it was unlikely a needle could be made out of the materials available in China during this time period. 29 :71-72 It is possible Bronze was used for early acupuncture needles.