A wide range of toys enriches children's childhood life, making them colorful and full of childishness. With the advancement of science and technology, the development of children's toys has become more and more complicated and realistic. Some large toys such as toy motor vehicles and toy music guns are much loved by children. Most of these toys are large in size and produce high-decibel sounds during operation. This not only has a great impact on the child's fragile auditory system, but long-term exposure can also make the child emotionally unstable. With the approach of Children's Day, experts remind parents that when buying toys for their children, they should be alert to the potential hazards of high-decibel toys. higher than twice the noise value of the normal environment high decibel toys, usually refers to the toy's noise during operation, which exceeds the environmental noise value required for the normal development and growth of children, thereby affecting children's health. Common toys with louder sound, such as electric toy cars, music guns, compressed air toys that make a sharp cry after squeezing, etc., have a sound value of more than 70 decibels, and the higher one can exceed 100 decibels. According to Guo Chaobin, deputy chief physician of the Department of Otorhinolaryngology, East Hospital of the Municipal Hospital, in people’s daily lives, the sound value of the normal indoor environment is about 40-50 decibels, and the sound value of ordinary conversation is about 30-40 decibels; walking in the community or street Above, the sound value that people feel is about 60 to 70 decibels. For children under the age of 12 and whose hearing is still under development, the sound under 40 decibels is the most ideal developmental environment, which has no effect on the child’s auditory system. Once the sound exceeds 70 decibels, it will affect the child’s auditory system It can cause unstable effects. When it exceeds 100 decibels, it can easily cause damage to the children's auditory system. High decibels damage children’s hearing. Compared with adults, children’s hearing is more sensitive. Their ears are like a curious receiver with densely packed sound receiving points. These receiving points are responsible for converting sounds into signals and transmitting them to the brain. Reprocessing in the process. However, children’s hearing is extremely fragile. High-frequency and high-decibel sounds that exceed 80 decibels will damage the child’s auditory nerve. These excessive stimulations will damage the fragile sound-receiving points on the ears and become insensitive, leaving them at high decibels for a long time. Will cause permanent damage to the child's hearing. 'Children's auditory system is in the developmental stage, all functions are unstable, and the auditory nerves are sensitive and fragile. Sometimes the sounds that adults find accustomed to are already too stimulating noise for children's auditory system.' Guo Chaobin said, a lot of high High-frequency screams and toy noises that are too high in decibels affect children's hearing and cause their hearing loss. Noise affects children’s mood Why do infants cry when they hear the noise? This is because high-frequency and high-decibel sounds not only affect children's hearing, but also affect their emotions. 'Children need to grow up in a quiet environment. High ambient noise will make the child nervous and emotionally unstable. The younger the child, the lower the tolerance for noise. In infancy, the slightest harsh sound will be Crying, older children will feel noisy and uncomfortable when their parents speak too loudly.' Guo Chaobin said. Long-term noise stimulation will make the child's mood unstable, easily agitated, tense, and difficult to concentrate. The behavior is hyperactivity and lack of tolerance. Therefore, parents are reminded not to ignore the unnoticeable adverse effects of high-decibel toys on children, and to reduce the stimulation of noise to children.