“…For example, the symptoms (heat/cold preference, sleep sensitivity, appetite or digestive conditions, water-drinking tendencies, sweating, urination, or defecation6, 7, 8, 9, 10), appearance (body shape,10, 11, 12 body index mass,13, 14 voice,10, 15 or skin status,16, 17), and psychiatric characteristics6, 18, 19, 20 showed statistical significance to differentiate between constitutional types. However, how this OS fundamentally works in SM has not been well known.…”