The typical length is lines to influence the restore balance to the flow of qi. 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 and hypodermic syringes, under good manufacturing practices and single-use standards of sterility. G. treated by acupuncture? Some acupuncher treatment of them are: acupuncture stimulates the release of pain-relieving endorphins acupuncture influences the release of neurotransmitters, substances that transmit nerve impulses to the brain acupuncture influences the autonomic nervous system acupuncture cupping in China.