A, cultivate good habits
1, pay attention to maintain a correct sitting and standing position
Teens and young people in their daily lives should pay special attention to their own sitting and standing walking posture. The correct posture is: the body is sitting upright, straighten the waist, the center of gravity of the upper body between the two hips, chin slightly upward, chest, abdomen, shoulders slightly back, hands naturally placed on top of the knees or on the desk. This sitting position can avoid the pressure on the chest and lungs, help blood and breathing normally, provide sufficient blood and oxygen for the brain.
2, reasonable arrangement of study time, to ensure adequate sleep
8 hours of sleep is the average of the amount of sleep that everyone needs every day, is in the growth and development period of secondary school students need more adequate sleep. In order to ensure their sleep time, they need to arrange their study time reasonably. Generally speaking, every day, in addition to the school arrangement of the class and self-study time, there are some scattered time can be used to study, for these times can make a specific study plan.
Second, cultivate good dress habits
Teenagers are gradually maturing, the pursuit of self, the pursuit of individuality to enhance the awareness, and began to pay attention to their own image in the public mind, to create a good image of youth must do "inside and outside".
1, dress neatly. Is in the developmental period of young people energetic, usually a lot of activity, sweat, body metabolism fast, should be diligent change of clothes, diligent laundry.
2, clothing should be neat. Is gradually moving towards the adult teenager dress should be simple, dignified, generous. If you pay too much attention to dress up, excessive pursuit of clothing brand and faction, is bound to promote the psychology of comparison, increase the family, the parents of the economic burden, but also distracted from the study energy.
3, to the natural applicable value orientation. Teenagers are in a period of growth and development, the bones are still developing, the daily outdoor activities for a long time, if the high heels will cause the body to lean forward or sprained feet and legs, so advocate for teenagers to wear flat heeled shoes to school, so that it is conducive to health.
Third, develop good eating habits
From 12 or 13 years old, the human body into the growth and development of the leap period - adolescence. Puberty human body organs generally accelerate growth and gradually reach maturity level, in this period, height growth can be from the usual annual growth of 4-6 centimeters and surge to 8-10 centimeters; weight from the average annual increase of 1.5-2 kg to 5-6 kg, internal organs also greatly accelerated growth rate. It can be said that the adolescent period is the most important and favorable period to grow knowledge, long body, increase physical fitness, and good dietary hygiene is one of the important factors affecting the physical and mental development of adolescents, so it is necessary to become a good dietary habits.
1, to emphasize eating breakfast
First of all, eat a good breakfast is very important for teenagers to learn. The morning study task is heavy, must be supplemented with enough calories and a variety of nutrients. Eat a good breakfast, energetic, high learning efficiency; do not eat breakfast, you will feel dizzy and weak, lack of concentration, slow reaction, memory loss, affecting learning achievements, sometimes even too low blood sugar and fainting.
Breakfast is not only to eat, and to eat well, light to eat cakes, doughnuts not yet, light to eat milk, eggs than line, scientific and reasonable breakfast should be a balanced diet of various types of food. The food should be both rice, noodles and other food to provide calories, but also to provide high-quality protein food, in addition, the best with some vegetables and fruits.
2, the correct treatment of snacking
From a physiological point of view, adolescents and young people's nutritional needs, gastrointestinal digestive capacity, sometimes only rely on three staple foods, can not fully meet the needs of the hungry can be supplemented with some small foods, such as melon seeds, peanuts, walnuts, fava beans, etc., these foods, in addition to protein, but also rich in unsaturated fatty acids, vitamins, minerals, etc., is beneficial to the health of the young people. etc., which are favorable to health. Some snacks, such as sugar, chocolate, puffed food, carbonated beverages and other high-sugar, high-fat foods, eaten in excess will cause excess calories, leading to obesity. Moreover, too much snacking, the stomach and intestines always get no rest, it will cause digestive disorders, causing gastrointestinal diseases.
3, do not be obsessed with "foreign fast food"
The current sale of Western fast food mainly includes: hamburgers, fried chicken, French fries, ice cream, Coke, etc., this kind of food nutrient composition can be summarized as "three high and one low", that is, high calorie, high fat, high protein. calories, high fat, high protein, low fiber. Often eat this type of fast food, although you can get high-quality protein, but the energy intake will be more than needed, excess energy into fat storage in the body, thus causing obesity. The large amount of saturated fatty acids consumed will also increase the incidence of cardiovascular disease.
4, and drinks in moderation
From the nutritional aspect, drinks in the nutritional monotonous, far from bringing adolescents the nutrients needed for growth and development, if a too many drinks, from which the intake of excess sugar, the sugar concentration in the blood has been in the state of the high level, there is no sense of hunger, can not eat normally, thus affecting the intake of other nutrients. In addition, most of the drinks are acidic and sugary, drinking more will increase the risk of dental caries. Therefore, beverages must be consumed in moderation. Milk and 100% pure fruit juice is rich in minerals and vitamins, usually more choose some, but do not get into a bad habit of drinking only drinks do not drink water.
Four strengthen physical exercise
Frequent physical exercise, can make the metabolism is improved, the structure and performance of the bone changes, manifested in the thickening of the bone matrix, bone thicker, on the growth of a positive role in promoting. Teenagers who regularly engage in physical exercise are on average 6-12 centimeters taller than those who do not.
The circulatory system is a very important organization of the human body, which is composed of the heart and blood vessels, and its role is to enable the blood to transport oxygen and nutrients to the tissues and cells, and at the same time, the tissues and cells in the metabolism of carbon dioxide and waste transport to the lungs, kidneys and other elimination of the body. Physical exercise has a significant impact on the development of the circulatory system, which plays a positive role in enhancing cardiovascular function and improving the quality of blood circulation.
The excitability, flexibility and endurance of the nerve cells of the cerebral cortex are improved in people who regularly engage in physical exercise.
Physical exercise can also help us to improve our learning as well as work efficiency.