Gegewu’s world

Some of China’s seven types of children’s toys (such as a manned electric toy car, spring audible toys, inertia toys, etc.) the sound level of noise was tested, the following few figures have surprised us:

Toy vehicle noise in the distance of 10 cm 82 ~ 100 decibels.

Large-scale music gun at 100 cm distance, the noise value of 74 ~ 107 dB, up to 130 ~ 140 db.

Following will be a squeeze toy air compressed in the 10 cm distance, the volume of up to 78 ~ 108 db.

Firecrackers in less than three meters away from the average noise value of 125 ~ 156 db.

Electric toy car which manned the sound level the highest, amounting to 74 ~ 97dB (decibels). This type of toy cars and more appear in parks or shopping malls, etc. by a children’s playground. Toys for children of inertia minimum sound level for 52 ~ 81dB. However, the majority of children’s toys of the sound level exceeded 60dB.

Toy noise can increase children’s troubles, leading to auditory fatigue. When the sound level up to 65dB, the child moves the accuracy of short-term memory, thinking ability and understanding of the capacity has declined. Of children through letters and numbers with aspirin’s ability to index memory tests show that the noise on children’s brain significantly interfere with the ability to work on the coordination of action and there have been noticeable effects. Noise is imported through the auditory organ and plant the nerve center of the cerebral cortex, the central nervous system caused by a series of adverse reactions.

Subjective feeling that it is ringing in the ears, dizziness, difficult to sleep, dreams, and softly chanting insensitive, or even heart palpitations, auditory hallucinations, head up, ears, etc. itch. At a stage of growth and development of children, their sensory and nervous systems are more sensitive and delicate, therefore, the noise of their more serious harm. Swiss scientists in a recent survey report pointed out that despite the current can not be accurately measured noise on the auditory nerve cell damage, but some children with hearing loss and indeed with those with special sound-related toys.

Toys for children to reduce the noise hazards, first of all to control the sound volume of the toy itself, at least make it less than 60dB. Experts warn that parents should be limits to let their children play this type of toy. Holidays When choosing toys to take to the streets with children, it is necessary to pay attention to the selection of less noise. Meanwhile, the proposal to create a sound toy manufacturers need to find ways to reduce the noise of toys.

Human growth and development there are two peaks, one in infancy, and the other is adolescence. Rapid growth in the adolescent stage of creating an environment conducive to the growth conditions, no doubt to promote the growth potential of the play. Which adequate nutrition, sports a reasonable and adequate sleep is to promote the growth of the three major elements.

Adequate nutrition is the daily intake of adequate energy and nutrients, including protein, fat, carbohydrate, dietary fiber, vitamins, inorganic salts and water.

Protein

Protein for young people is especially important during adolescence, the quality of daily protein intake should be no less than 18% of total calories -20%, animal protein should account for daily intake of protein 1/3-1/2.

Carbohydrate

Carbohydrate and fat is also the growth and development of essential nutrients. Carbohydrates mainly come from the rice-type food, so every day to ensure adequate appetite, general 13-18 year-olds, the daily staple food should not be less than 500 grams.

Macroelements

In the growth spurt period, daily calcium intake should reach 1000-1200 mg, 400 units of vitamin D daily. Vegetables and fruits can not only provide a large number of inorganic salts and vitamins, it contains fiber also promote body’s protein, fat and carbohydrate absorption, increase peristalsis. Therefore, the amount of vegetables every day young people not to less than 400 grams.

Balanced diet
In ensuring a sufficient number at the same time, but also with a reasonable diet and diversification, that is, with a thickness, with not being choosy food, non-partial eclipse. Not snacking too much affected by the intake of important nutrients.

To strengthen the movement

In ensuring adequate nutrition supply under the premise of sports is to promote physical development and enhancement of the most effective physical method. Movement can contribute to the genetic potential to be maximized.

According to the research confirmed that the movement of children on average than non-movement 2-3 cm high. Exercise can stimulate growth hormone secretion, promote metabolism, enhance appetite. Children and adolescents frequently engage in sports, can promote bone growth, so long bones,increased bone mineral density.

Regular exercise, but also muscle fiber  improve muscle strength, speed and endurance. Movement can also consume excess fat, obesity prevention in the fast-growing period. Puberty students only participate in physical education and recess activities is not enough, a day actively engaged in one hours of outdoor sports activities are essential.

Guarantee sleep

The promotion of the human body long high hormone - growth hormone during sleep state secretion awake secretion 3 times, so to ensure that adequate sleep is conducive to long high. Muscle relaxation during sleep and is conducive to stretch joints and bones.

The duration of sleep because of age and different, each individual is also very different, one day sleep time required: 16-20 hours for newborns, 1-3-year-old for 12-14 hours, 4-6-year-old is about 11-12 hour, 7-10-year-old average of 10 hours, 10-14-year-old for nine hours; adults generally 7-8 hours.

Prevent disease

Acute disease

A variety of physiological dysfunction caused by acute or chronic disease of the growth and development of children can have a direct impact. However, the extent of the impact depends on the lesion site occurred, the length of the course and severity of illness.

General acute diseases of the impact of growth is temporary, especially in the physical circumstances in good nutrition, you can soon resume. However, repeated respiratory infections and diarrhea would be a clear obstacle to growth and development of children, it is necessary to actively combat infant diarrhea, recurrent respiratory tract infection.

Congenital

In addition, such as chromosomal abnormalities, endocrine diseases, bone and cartilage development disorder, severe congenital heart disease and chronic renal failure and other diseases, the impact on growth and development are very clear, medically known as pathological short stature.

Some of them through early diagnosis and treatment can be fully or partially restored, such as growth hormone deficiency in children, clinical use of growth hormone therapy is very effective; thyroxine the lack of children, taking thyroid hormone is also very effective, can be significantly improved height, to promote growth.

Therefore, if the child short stature should be treated promptly in order not to delay the best time for treatment.