Eleven-year-old boys are in a stage of growth and development. At this time, parents should pay more attention to their children's absorption of nutrients, so that their height can grow faster. However, they should also be careful not to supplement too many nutrients, otherwise they will have overnutrition, which will also affect their development. Physical Growth Adolescence is the peak period of individual growth and development. During this period, the body and physiological functions undergo rapid changes, becoming the peak period of growth and development, which is also the second acceleration period. Children during this period experience very obvious changes in height, weight, shoulder width and chest circumference. 1. Rapid growth in height Rapid growth in height is the most obvious feature of physical changes in children during puberty. According to statistics, before puberty, children grow an average of 3-5 cm per year. During puberty, they grow an average of about 6-8 cm per year, and may even grow as much as 10-12 cm. 2. Rapid weight gain Weight is an important indicator of physical development. Weight reflects muscle development, bone growth, and the enlargement of internal organs. The average annual weight gain of children during puberty is 4.5-5.5 kg. Physiological functions The physiological functions of adolescent children also increase rapidly. Changes in muscle and fat make men's muscles strong and women's bodies plump. The brain and nervous system gradually mature. As puberty accelerates growth, children and adolescents experience noticeable changes in their body shape and facial features. Through this change, their physical features begin to approach those of adults. Sexual maturity The reproductive system is the last system in the human body to mature, and its maturity marks the completion of human physiological development. 1. Development of sexual organs The reproductive organs develop very slowly before puberty, but once puberty begins, the rate of development increases rapidly. 2. The appearance of secondary sexual characteristics Secondary sex characteristics refer to gender characteristics in body shape, also known as secondary sex characteristics. The main secondary sexual characteristics of women are breast bulge, appearance of body hair, wider pelvis and larger buttocks, etc.; the main secondary sexual characteristics of men are the appearance of beard, prominent Adam's apple, deep voice, obvious body hair, etc. The appearance of secondary sexual characteristics highlights the differences in physical signs between young boys and girls. 3. Sexual function matures The maturation of the reproductive system marks the completion of human physiological development. The maturation of the gonads causes menstruation in women and nocturnal emission in men. |
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