Four Constitutional Acupuncture (FCA) is the most straightforward, easy-to-learn, clearly-defined, standardized, and reproducible acupuncture system available. Four Needle Technique (FNT) is noted for its quick, significant, and lasting results. Only four sets of FNT need to be implemented in order to effectively treat all the diverse diseases that distal acupuncture treats. Physical, physiological, and psychological diagnostic tools are essential for assessing the constitutions of FCA. These constitutions are identical to the four temperaments since the ancient Greeks. Tetrasoma Four Constitutional Medicine unifies FCA, Sasang herbology, and diet under one theory. This book provides a starting point to enable the practitioner to quickly establish successful means of diagnosis and acupuncture treatment that will naturally lead into utilization of other transporting points, Chinese herbs, as well as dietary therapy.