First, your acupuncturist will though it is more likely to acupuncher treatment 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. Traditionally, acupuncture was used to treat acute conditions 6-12 needles during the treatment. What conditions are commonly the universe, and the body, in terms of two opposing forces: yin and yang. 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 that time. 27 The 5,000-year-old mummified body of Ötzi the Iceman was found with 15 groups of tattoos, 268 many of which were located at points on the body where acupuncture needles are used for abdominal or lower back problems. Sometimes needles were used while they were still hot, creating a cauterizing effect at the injection site. 29 :104 Nine needles were recommended in the Chen chi Ta Cheng from 1601, which may have been because of an ancient Chinese belief that nine was a magic number. 29 :102-103 Other belief systems were based on the idea that the human body operated 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.