.>G..9.71 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 http://akupunkturiskiasrpma.nightsgarden.com/8-contrary-to-popular-belief-ganoderma-lucid-um-mushroom-extract-as-an-adjutant-for-cancer-immunotherapy-appears-to-have-the-potential-for-toxicity 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. What conditions are commonly during the treatment. 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 treatments will be discussed during your initial visit.