Acupuncture is a key component of traditional Chinese medicine (TCM) in which thin needles are inserted into the body to manipulate its energetic system. The meridians (acupuncture functional circuits) are hereby associated with organ systems. These organ systems in turn represent very specific mental functions. Any dysfunction within an organ system triggers very specific patterns of behavior. To cite just two examples: the functional circuit gallbladder is associated with excessive anger, effusive joy points to the functional circuit heart.
The goal of any acupuncture treatment is to re-establish balance. Both “anger” and “joy” are natural psychological functions of the individual. But they should be in harmony with the overall system; any excessive presence brings imbalance to the entire system.
Read more: https://en.wikipedia.org/wiki/Acupuncture