PSY BEH 101D Lecture Notes - Lecture 38: Menarche, Puberty, Childhood Obesity
18 Dec 2019
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Document Summary
Timing and variations in puberty in the united states where children mature up to a year earlier than children in european countries the average age of menarche has declined significantly since the mid-nineteenth century. However, some researchers recently have found that the onset of puberty is still occurring earlier in girls and boys. The basic genetic program for puberty is wired into the species. However, nutrition, health, family stress, and other environmental factors also affect puberty"s timing. Study: a recent cross-cultural study of 48,000 girls in 29 countries found that childhood obesity was linked to early puberty. Study: found that early onset of menarche was associated with severe. Psychological accompaniments of puberty: child sexual abuse. For most boys, the pubertal sequence may begin as early as age 10 or as late as. 13 , and it may end as early as age 13 or as late as 17.
