Toys too “noisy” The children will become “stupid”
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.