More and more research confirms that hearing very loud sounds hurts hearing, even if they don't focus on babies or study the repercussions on other facets. New research indicates that music or loud noises during the growth phase may end up affecting memory or learning mechanisms.
To the well-known auditory, cardiovascular and endocrinological alterations, in addition to stress and irritability caused by powerful sounds, the morphological changes in the brain are added, first detected thanks to an investigation with mice.
The study was prepared by scientists from the Center for Pharmacological and Botanical Studies of the University of Buenos Aires, in Argentina. After two hours of exposure to noise of 95 to 97 decibels (dB), higher than what is considered a safe level (between 70 and 80 dB; a music concert would be at 110 dB), cellular damage was found in the brain of animals.
Specifically, the hippocampus zone, a region associated with memory and learning processes, was altered, suggesting that the same could happen in developing humans. The mice, with a nervous system similar to that of humans, had an age equivalent to between six and 22 years of age.
AdvertisingAccording to the authors, the noise levels to which young people are exposed could cause deficits in memory and long-term care. However, the authors themselves take their conclusions applied in children with precautions, since it is difficult to verify why they cannot be subjected to this type of experiments (and hopefully so ...).
The authors of the study, published in the journal 'Brain Research', consider that it is possible that before a prolonged stimulus the brain has time to repair its lesions, although they do not draw conclusions because in the investigation a white noise was used that contains all the sound frequencies and does not equal for example to loud music.
In any case the neuronal fragility of the early stages of development seems not to be prepared for such loud sounds, and the development of hearing in the baby is a complex process and these "interferences" of powerful sounds could cause damage to the baby's brain. Music can be very beneficial for children since they are babies, but better at a measured volume.
