when does puberty occur in males and females
Puberty On average, girls begin puberty around ages 10–11 and end puberty around 15–17; boys begin around ages 11–12 and end around 16–17.[1][2][3][4][5] The major landmark of puberty for females is menarche, the onset of menstruation, which occurs on average between ages 12–13;[6][7][8][9] for males, it is the first ejaculation, which occurs on average at age 13.[10] In the 21st century, the average age at which children, especially girls, reach puberty is lower compared to the 19th century, when it was 15 for girls and 16 for boys.[11] This can be due to any number of factors, including improved nutrition resulting in rapid body growth, increased weight and fat deposition,[12] or exposure to endocrine disruptors such as xenoestrogens, which can at times be due to food consumption or other environmental factors.[13][14] Puberty which starts earlier than usual is known as precocious puberty. Puberty which starts later than usual is known as delayed puberty.
Testosterone Growth of spermatogenic tissue in testicles, male fertility, penis or clitoris enlargement, increased libido and frequency of erection or clitoral engorgement. Growth of jaw, brow, chin, nose, and remodeling of facial bone contours, in conjunction with human growth hormone.[21] Completion of bone maturation and termination of growth. This occurs indirectly via estradiol metabolites and hence more gradually in men than women. Increased muscle strength and mass, shoulders become broader and rib cage expands, deepening of voice, growth of the Adam's apple. Enlargement of sebaceous glands. This might cause acne, subcutaneous fat in face decreases. Pubic hair extends to thighs and up toward umbilicus, development of facial hair (sideburns, beard, moustache), loss of scalp hair (androgenetic alopecia), increase in chest hair, periareolar hair, perianal hair, leg hair, armpit hair.
Babylon Babylon (
Is It Fall Yet? The film chronicles the characters' summer break between seasons four and five.