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Notable among the morphologic changes in size, shape, composition, and functioning of the pubertal body, is the development of secondary sex characteristics, the "filling in" of the child's body; from girl to woman, from boy to man. [clarification needed]
Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction.It is initiated by hormonal signals from the brain to the gonads: the ovaries in a female, the testicles in a male.
Despite some genetic sex differences, environmental factors play a large role in biological changes during adolescence. For example, girls tend to reduce their physical activity in preadolescence [43] [44] and may receive inadequate nutrition from diets that often lack important nutrients, such as iron. [45]
Also called "development in context" or "human ecology" theory, ecological systems theory was originally formulated by Urie Bronfenbrenner.It specifies four types of nested environmental systems, with bi-directional influences within and between the systems; they are the microsystem, mesosystem, exosystem, and macrosystem.
Sex differences in human physiology are distinctions of physiological characteristics associated with either male or female humans. These differences are caused by the effects of the different sex chromosome complement in males and females, and differential exposure to gonadal sex hormones during development.
Nearly 1 in 5 young people worldwide intentionally injure themselves every year. xijian/E! via Getty ImagesEmotions are tricky things. They allow for humans to fall in love, wage war and, as it ...
Adolescent health, or youth health, is the range of approaches to preventing, detecting or treating young people's health and well-being. [1]The term adolescent and young people are often used interchangeably, as are the terms Adolescent Health [2] and Youth Health.
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