Life history theory provides a metatheoretical framework for the study of pubertal timing from
an evolutionary-developmental perspective. The current article reviews 5 middle-level …

This paper provides a review of the recent literature on some aspects of secular trends in
Western countries. In particular, we discuss height variation, mainly on the basis of conscript …

Using data from rural Bangladesh, we explore the hypothesis that women attain less
schooling as a result of social and financial pressure to marry young. We isolate the causal …

Introduction: The onset of menstruation is part of the maturation process. However, variability
in menstrual cycle characteristics and menstrual disorders are common. The purpose of this …

Background Age at menarche is considered a reliable prognostic factor for idiopathic
scoliosis and varies in different geographic latitudes. Adolescent idiopathic scoliosis …

STUDY OBJECTIVE: Adolescence, the transitional phase of physical and mental
development between childhood and adulthood, is characterized by immense hormonal …

Purpose: The aim of this study was to determine the age at menarche, the menarcheal
features, and the association between menarcheal age and socioeconomic status in an …

Objectives Most girls experience pain and other discomforting symptoms during their
menstrual periods. The aim of this study is to investigate the prevalence, and patterns of …

Background: Menarcheal age is the most important measure of sexual maturation in girls
and a sensitive indicator of environmental conditions during childhood. Objective: The study …

We examine the widely accepted view that very low waist–hip ratios and low body mass
indices (BMIs) in women in well-nourished populations are judged attractive by men …