Acupuncture (from Lat. acus, "needle" (noun), and pungere, "prick" (verb)) or in Standard Mandarin, zhen jiu (lit: needle - moxibustion) is a technique of inserting and manipulating filiform needles into "acupuncture points" on the body. According to acupuncture theory, this will restore health and well-being, and is particularly good at treating pain. The definition and characterization of these points is standardized by the World Health Organization (WHO)[1]. Acupuncture is thought to have originated in China and has been practiced in China for more than 2,000 years (though some think it has been around for 4,000 years), most commonly associated with Traditional Chinese medicine (TCM). Different types of acupuncture (Japanese, Korean, and classical Chinese acupuncture) are practiced and taught throughout the world.