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There are definite gender differences in the growth and development of adolescent boys and girls. Important in:
1. The age at which the height growth spurt begins is earlier than that of boys, and the magnitude of the spurt is greater for boys than for girls.
2. Different weight component growth. Weight gain is an important reflection of the combined growth of bones, muscles, fat, and internal organs. Androgens have a clear effect of promoting the development of muscle tissue, and estrogen has the effect of increasing the deposition of adipose tissue, during puberty, because boys secrete more androgen, girls secrete more estrogen, so, in general, boys have more muscle growth than girls, and girls have relatively more fat growth.
By adulthood, muscle weight accounts for about 42 of body weight for men and only 36 for women; Fat weight in women accounts for about 28 percent of body weight, while men only account for about 18.
3. Differences in cardiopulmonary efficacy. For example, lung capacity (lung capacity refers to the amount of air that can be exhaled when exhaling with effort after maximal inspiration, and is an indicator of respiratory efficacy) increases with age, and boys consistently outnumber girls throughout the growth period, and the difference is increasing. At the age of 13, the lung capacity of girls is about 92 of that of boys, and after the age of 18, the lung capacity of girls is only about 70 of that of boys.
4. Differences in athletic ability. For example, boys are better than girls in the 50-meter run, standing long jump, arm bending, sit-ups, etc., which reflect the indicators of athletic ability. Before the age of 12, boys were slightly higher than girls in all indicators; 13 During the age of 18, the gap between men and women widens rapidly.
But girls tend to have more potential than boys in terms of flexibility, harmony and balance.
5. Differences in sexual development. This is the most characteristic difference between boys and girls in the development of puberty.
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I guess estrogen makes girls look plumper.
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Hello, if you are pregnant, if you are a boy, you will not be very fat, if you are a girl, it is easy to look fat, you are pregnant, you have to know that a fat person and a person's body, the physique is different, pregnancy has to think that the body will change in the future, so it doesn't matter if you are fat or thin, for the sake of the baby, I hope it can, help you, I wish you and your baby a happy day.
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Act 2 is similar, except that the orange blocks are a bit smaller. The baby boy didn't seem to notice the difference in the size of the blocks, while the baby girl immediately became agitated and began to make noises as if they were about to speak. Experiments confirmed:
Female babies develop their bones, muscles, and nerves faster than male babies, and usually female babies speak earlier than male babies. The researchers believe that this is due to physical reasons, and they believe that the left cranial nerve in girls develops faster than in boys, and that it is the left cranial nerve that strongly influences a person's ability to use vocabulary, spell and remember things. By the time they start school, girls are physically prepared for memorization, spelling, and reading, and as a result, they appear smarter than boys.
In the years leading up to school, boys develop a so-called "aggressiveness". For a long time, it has been believed that the cause of this aggression is the hormones in the body, but now researchers believe that the hormones are only one of them, and the other is that because he is a boy, his mother often teaches him to be brave and strong, and to use his own wisdom to solve problems, thus training the boy's independence and creativity. So, while the little girl is busy memorizing what the teacher has said to get a high score, the little boy is learning to develop the ability to think independently.
This may be one of the reasons why girls in school have "better brains" than boys, and only a few girls are judged to be scientists. (Ruoyang).
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If you think that a good adolescent girl weighs more than 20 of the normal weight, she should start**, if it is a diet**, you need to pay attention to the following aspects.
No inappropriate ** law.
Liposuction, medications**, heavy exercise**, and excessive dieting** are not suitable for adolescent girls. Because these ** methods will lead to stunted growth of young girls and produce various diseases.
Hunger** should not be used.
Girls are in the period of development, and their bodies need a lot of nutrients, and if they diet excessively, it will hinder the development of their bodies, leading to stunted development of secondary sex characteristics and height.
Keep your body and mind happy.
Be in good spirits and participate in more social activities, which can not only burn more calories, but also forget about hunger; On the contrary, if you are depressed, you will unconsciously eat a lot of food, which will lead to obesity.
It is necessary to ensure adequate nutrition, appropriate calories and a reasonable dietary structure.
The calorie intake should not be too much, not only to pay attention to the combination of various nutrients, but also to eat less high-fat and high-calorie foods, such as creamy snacks, chocolate, etc.
Foods containing protein, vitamins and minerals, and crude fiber should be consumed.
Drink plenty of water, generally speaking, each person drinks 6 or 8 large glasses of water per day. Drinking water is not related to obesity, so there is no need to restrict drinking water, and water plays a large role in promoting the normal effect of antibodies in the body, so you should drink more water.
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Entering puberty may lead to obesity. The reason for this is that after puberty, there is a significant increase in appetite. It is because the body's metabolism does not increase after puberty, so the appetite will increase significantly, and when the appetite increases significantly, if there is no first chain control of the total amount of food, and there is no reasonable physical exercise, it may lead to overnutrition, which leads to obesity.
Adolescence due to overnutrition caused by excessive eating, obesity is generally physiological obesity, usually do not need to carry out drugs**, physiological obesity generally speaking, first of all, a dietary structure adjustment, and then appropriate enough physical exercise to achieve the goal.
And if the obesity cannot be alleviated through these means, and it seriously affects the quality of life of the patient, sometimes it may be necessary to start some drugs for ****.
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Yes, a little bit.
Theoretically, it is the same, but people are divided into sensibility and rationality, and learning mathematics requires more rationality, which men are better than women. So don't think cranky in class, don't think cranky when you get home from class, focus on your studies, and you can definitely learn math well!
I don't even think that this boy loves this girl If it's true love, you can tolerate everything and you won't hate each other because you can't get it If the other party is happy Even if this happiness is not created by yourself Then he will be very happy Sometimes he occasionally does something wrong Even he will occasionally get angry with him Even was originally a girl with a very bad temper But after being with him, the couple's temper has become much smaller Seriously, every time he gets angry with the couple, the couple's heart is really uncomfortable Originally, he never lost his temper with the occasional But now. Even know that this is all the fault of the puppet It's the puppet that hurts him too much, so the puppet has to endure it no matter how uncomfortable he is in his heart He is angry with the puppet is also a sign of love for the puppet Of course the puppet will not refuse his love for the couple
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Of course, it is just as important, but some old people are more patriarchal, and some adults like boys, so it leads to the current imbalance between men and women, but if there are too many men, girls will become very important! So it's important for both men and women alike! Friends give the next points.