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Adolescence is a socially constructed concept. In pre-industrial society, Matures fort girls were considered adults when they reached physical maturity; however, today we have an extended time between childhood and adulthood known as adolescence. Adolescence is the period of development that begins at puberty and ends at emerging adulthood; the typical age range is from 12 to 18 years, and this stage of development has some predictable physical milestones.
Puberty is the period of several years in which rapid physical growth and psychological changes occur, culminating in sexual maturity. The onset of puberty typically occurs at age 10 or 11 for females and at age 11 or 12 for males; females usually complete puberty by ages 15 to 17, while males usually finish around ages 16 to Females tend to attain reproductive maturity about four years after the first physical changes of puberty appear.
Males, however, accelerate more slowly but continue to grow for about six years after the first visible pubertal changes. While the sequence of physical changes in puberty is predictable, the onset and pace of puberty vary widely. During this time, both the adrenal glands and the sex glands mature—processes known as adrenarche and gonadarche, respectively. These changes are largely influenced by hormonal activity. Hormones play an organizational role priming the body to behave in a certain way once puberty begins and an activational role triggering certain behavioral and physical changes.
It is this stage in life in which develops secondary sex characteristics. Primary sex characteristics are organs specifically needed for reproduction, like the uterus and ovaries in females and the testes in males.
Secondary sex characteristics, on the other hand, are physical s of sexual maturation that do not directly involve sex organs. In females, this includes development of breasts Matures fort girls widening of hips, while in males it includes development of facial hair and deepening of the voice. Both sexes experience development of pubic and underarm hair, as well as increased development of sweat glands. The male and female gon are activated by the surge of hormones, which puts them into a state of rapid growth and development.
The testes primarily release testosterone, and the ovaries release estrogen; the production of these hormones increases gradually until sexual maturation is met. Girls experience menarchethe beginning of menstrual periods, usually around 12—13 years old, and boys experience spermarche, the first ejaculation, around 13—14 years old. Facial hair in males typically appears around age Males experience their growth spurt about two years later than females. The accelerated growth in different body parts happens at different times, but for all adolescents it has a fairly regular sequence.
The first places to grow are the extremities head, hands, and feetfollowed by the arms and legs, and later the torso and shoulders.
This non-uniform growth is one reason why an adolescent body may seem out of proportion. During puberty, bones become harder and more brittle. Before puberty, there are nearly no differences between males and females in the distribution of fat and muscle.
During puberty, males grow muscle much faster than females, and females experience a higher increase in body fat. The ratio between muscle and fat in post-pubertal males is aroundwhile for males it is about The adolescent brain also remains under development during this time. Brain growth continues into the early 20s. The development of the frontal lobe, in particular, is important during this stage. Because rates of physical development vary so widely among teenagers, puberty can be a Matures fort girls of pride or embarrassment.
Girls and boys who develop more slowly than their peers may feel Matures fort girls about their lack of physical development; some research has found that negative feelings are particularly a problem for late maturing boys, who are at a higher risk for depression and conflict with parents Graber et al. Part II: Educational Psychology. Search for:. Physical Development in Adolescence During puberty, an adolescent experiences a period of rapid physical growth that culminates in sexual maturity. KEY POINTS Adolescence is the period of development that begins at puberty and ends at emerging adulthood; the typical age range is from 12 to 18 years, and this stage of development has some predictable physical milestones.
During puberty, the adolescent develops secondary sex characteristics such as a deeper voice in males and the development of breasts and hips in females as their hormonal balance shifts strongly towards an adult state. Physical Changes of Puberty Puberty is the period of several years in which rapid physical growth and psychological changes occur, culminating in sexual maturity. Sexual Maturation It is this stage in life in which develops secondary sex characteristics.
Brain Development The adolescent brain also remains under development during this time. Brain Development During Adolescence Brain growth continues into the early 20s.
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Why do girls mature faster than boys?