许多理发店的门口,都装有一个由红、蓝、白三种色带组成的旋转色柱。这个奇怪的习俗起源于欧洲。早在公元前5世纪,古希腊有位医圣叫希波克拉底。他认为,人体由血液、粘液、黄胆汁、黑胆汁四种体液构成,而人的气质也因这四种体液的比例不同而分为下列四种类型:多血质、粘液质、胆汁性、忧郁质。希波克拉底还认为,疾病也是由于构成人体的四种液元素发生变化或互相之间不协调所致。中世纪欧洲,医学界盛行着希波克拉底的学说,而且认为疾病是由于 Many hairdressers at the door, are equipped with a red, blue, white ribbon composed of three rotating column. This weird custom originated in Europe. As early as the 5th century BC, there was a medical doctor named Hippocrates in ancient Greece. He believes that the human body by the blood, mucus, yellow bile, black bile composed of four bodily fluids, but also due to the different temperament of the four different body fluids and divided into the following four types: blood, mucus, bile, Melancholy quality. Hippocrates also believed that the disease is also caused by the change or incompatibility of the four fluid elements that make up the human body. Medieval Europe, the medical world prevailed Hippocrates doctrine, and that the disease is due to