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Early puberty is posited to put girls at higher risk of sexual abuse; [19] [40] however, a causal relationship is, as yet, inconclusive. [40] Early puberty also puts girls at a higher risk for teasing or bullying, mental health disorders and short stature as adults.
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.
Most of the changes of virilization are produced by androgens. Virilization is a medical term commonly used in three medical and biology of sex contexts: prenatal biological sexual differentiation , the postnatal changes of typical chromosomal male (46, XY) puberty , and excessive androgen effects in typical chromosomal females (46, XX).
At an early stage in embryonic development, both sexes possess equivalent internal structures. These are the mesonephric ducts and paramesonephric ducts. The presence of the SRY gene on the Y chromosome causes the development of the testes in males, and the subsequent release of hormones which cause the paramesonephric ducts to regress. In ...
Sexual differentiation is the process of development of the sex differences between males and females from an undifferentiated zygote. [1] [2] Sex determination is often distinct from sex differentiation; sex determination is the designation for the development stage towards either male or female, while sex differentiation is the pathway towards the development of the phenotype.
Testosterone levels increase in adolescence after puberty and into early adulthood, and naturally decline over time, usually starting in a man’s 40s or fifties. However, this drop now seems to ...
Synaptic pruning, a phase in the development of the nervous system, is the process of synapse elimination that occurs between early childhood and the onset of puberty in many mammals, including humans. [1] Pruning starts near the time of birth and continues into the late-20s. [2]
When adrenarche, an increase in adrenal androgen production, central puberty, [14] and all disease-causing conditions have been excluded, the term isolated premature pubarche is used to describe the unexplained development of pubic hair at an early age in people without other hormonal or physical changes of puberty.