Eckes L K
Hautarzt. 1985 Jul;36(7):381-5.
There has been no polytypical variation in human hairforms for at least the last 10,000 years. In view of the wide variety of hair forms, it must be assumed that biological adaptation has occurred. Several features of the scalp hair, such as form, color, thickness, density, maximal length, tensile strength, etc. are clearly genetically determined. When dealing with diseases of the hair, it may be useful for the dermatologist to distinguish between "hair" and "hair".
至少在过去一万年里，人类的发型没有出现过多型性变异。鉴于发型种类繁多，必须假定已经发生了生物适应。头皮毛发的几个特征，如形状、颜色、厚度、密度、最大长度、抗拉强度等，显然是由基因决定的。在处理毛发疾病时，皮肤科医生区分“头发”和“毛发”可能会有所帮助。
