menarche

n.

初潮；经初期；

1. Indeed, two teams found that several other genes linked to height also predict age at menarche.
   而事实上，两个小组发现，其他几个和身高有关的基因也能预测初潮的年龄。
2. As a result, girls reach menarche sooner and form clingy relationships, while boys become aggressive and sexually exploitive.
   结果，女孩子初潮时间提前，并且形成对肉体关系的依赖，而男孩子则渐渐变得好斗，成为性侵犯者。

Body fat, menarche, fitness and fertility
Normal age of menarche in fragile X syndrome.
Hormones and mood: from menarche to menopause and beyond.
Asthma Severity Is Associated with Body Mass Index and Early Menarche in Women
Relation of early menarche to depression, eating disorders, substance abuse, and comorbid psychopathology among adolescent girls.
Secular trend of earlier onset of menarche with increasing obesity in black and white girls: the Bogalusa Heart Study
Prospective Ten‐Month Exercise Intervention in Premenarcheal Girls: Positive Effects on Bone and Lean Mass
Prediction of adult height from height, bone age, and occurrence of menarche, at ages 4 to 16 with allowance for midparent height.
Ethnic differences in the presence of secondary sex characteristics and menarche among US girls: the Third National Health and Nutri...
Bone growth from 11 to 17 years: relationship to growth, gender and changes with pubertal status including timing of menarche