what changes you seen during puberty ?
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Changes During Puberty
You have learnt how animals reproduce. It is only after ‘growing up’ to a certain age that human beings and many other animals can reproduce. Why can humans reproduce only after a certain age? In this topic, you will learn about changes that take place in the human body after which a person becomes capable of reproduction.
Earlier, you have learnt about human reproductive organs. Here, we shall discuss the role that hormones play in bringing about changes that make a child grow into an adult.
Adolescence and Puberty
Boojho was celebrating his 12th birthday. After his friends left, Boojho and Paheli began chatting with their parents. Paheli studies in an all-girls school. She started laughing. She remarked that many of Boojho’s school friends, whom she met after a year, had suddenly shot up in height. Some of them were looking very funny with a hairy line above their lips. Her mother explained that the boys had grown up.
Growth begins from the day one is born. But upon crossing the age of 10 or 11, there is a sudden spurt in growth which becomes noticeable. The changes taking place in the body are part of growing up. They indicate that you are no longer a child but are on the way to becoming an adult.
Growing up is a natural process. The period of life, when the body undergoes changes, leading to reproductive maturity, is called adolescence. Adolescence begins around the age of 11 and lasts upto 18 or 19 years of age. Since this period covers the ‘teens’ (13 to 18 or 19 years of age), adolescents are also called ‘teenagers’. In girls,adolescence may begin a year or two earlier than in boys. Also, the period of adolescence varies from person to person.
The human body undergoes several changes during adolescence. These changes mark the onset of puberty. The most important change which marks puberty is that boys and girls become capable of reproduction. Puberty ends when an adolescent reaches reproductive maturity.
Increase in Height
The most conspicuous change during puberty is the sudden increase in height. At this time the long bones, that is, the bones of the arms and the legs elongate and make a person tall.
The following chart gives the average rate of growth in height of boys and girls with age. The figures in columns 2 and 3, give the percentage of the height a person has reached at the age given in column 1. For example, by the age 11, a boy has reached 81% of his probable full height, while a girl has reached 88% of her full height. These figures are only representative and there may be individual variations.
Use the Table for your friends and work out how tall they are likely to be. Find out who is likely to be the tallest and who might
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Answer:
Guys and girls both begin to grow hair under their arms and in their pubic areas (on and around the genitals). It starts out looking light and sparse. Then as you go through puberty, it becomes longer, thicker, heavier, and darker. Eventually, guys also start to grow hair on their faces.