作者: Rose E. Frisch
DOI:
关键词: Endocrinology 、 Reproduction 、 Well nourished 、 Internal medicine 、 Menstruation 、 Medicine 、 Sexual maturity 、 Critical weight 、 Demography 、 Body size 、 Menarche 、 Historical evidence
摘要: The mean weight at menarche of 30 undernourished Alabama girls did not differ from that well-nourished controls although the attained two years later than and a significantly greater height. This supports hypothesis critical triggers menarche. weight-dependency irrespective causal relationship reduces variation in body size sexual maturity by delaying or advancing age maturation as compensation for environmental genetic variation. Recent historical evidence indicates Caucasian has been about 46 kg over century. (authors)