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Emerging adulthood and adolescence differ significantly with regard to puberty and hormonal development. [53] While there is considerable overlap between the onset of puberty and the developmental stage referred to as adolescence, there are considerably fewer hormonal and physical changes taking place in individuals between the ages of 18 and 25.
The theory of Emerging Adulthood was developed by Jeffery Arnett in the early 2000s. The theory is centered around changes often experienced during the transition from adolescence to adulthood. This time period takes place usually between the ages of 18 and 29.
Further growth and development continues after birth, and includes both physical and psychological development that is influenced by genetic, hormonal, environmental and other factors. This continues throughout life : through childhood and adolescence into adulthood .
Derived from the Latin puberatum (age of maturity), the word puberty describes the physical changes to sexual maturation, not the psychosocial and cultural maturation denoted by the term adolescent development in Western culture, wherein adolescence is the period of mental transition from childhood to adulthood, which overlaps much of the body ...
In medicine and the social sciences, a young adult is generally a person in the years following adolescence, sometimes with some overlap. [1] Definitions and opinions on what qualifies as a young adult vary, with works such as Erik Erikson's stages of human development significantly influencing the definition of the term; generally, the term is often used to refer to adults in approximately ...
The study found that several sleep characteristics, including sleep quality, early morning awakening, and difficulty falling asleep or staying asleep, were linked to accelerated brain aging ...
The Tanner scale (also known as the Tanner stages or sexual maturity rating (SMR)) is a scale of physical development as pre-pubescent children transition into adolescence, and then adulthood. The scale defines physical measurements of development based on external primary and secondary sex characteristics, such as the size of the breasts ...
Bonobos share many physical characteristics with humans, including neotenous skulls. [39] The shape of their skull does not change into adulthood (only increasing in size), due to sexual dimorphism and an evolutionary change in the timing of development. [39]