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So how is it that babies don't get hearing loss from their own loud crying? Babies can cry for a lot longer then just a few seconds but i've never read anywhere that this causes hearing loss with them. It can however cause hearing loss with caregivers. Are baby ears different to those of adult ears? Or do babies do get hearing loss from their own crying but are able to repair this hearing loss because they're still very young and thus have lots of stemcells?
Within three to six months after the birth of babies, they develop their hearing system considerably. Before that this system is not fully developed. So when these babies cry, they dont get their hearing loss problem because they are too young and their acoustic system is going under development. The more time they passes, the more they learn to express their needs with signal, expression and broken words. So they gradually cry less. Thus they dont face problem. A baby cries when he needs something and can not express it. But if they face problem by their loud noise, which will cause problem to their ears, they should decrease the noise of their crying for their own protection, right? Ok, but dont just let your young kids go to your baby for making loud sound in front of the ear of the baby. Be cautious about that. The thing is when we produce sound its impact and intensity varies according to the wave propagation theory. It can be understood more clearly when you are in a crowdy place. Or consider you made a loud sound. The one who is near to you, will have a greater impact and will be affected more than you. Same goes for babies.
Next comes parents. How do they face such disturbing sound? Obviously it is their love for which they endure the pain. Our concern is whether parents suffer from hearing problem due to the loud crying sound around 120 db. Well, to have hearing loss, it requires years. Besides, parents are not constantly under the loud sound. Because a baby can sleep upto 12 hours if not more than that. The baby will cry when he needs something and you see when the parents fulfill the demand of the baby, the environment becomes peaceful again. Also if we consider the baby is crying for unknown cause, which is very normal and not frequently happens, the parents just endure it. Yes they may need to sacrifice their sleep in the night. But they love their child and just endure it. Thus they grow accommodation to the situation. This is more like mental endurance. The same thing which is endurable to a parents will be disturbing and unbearable for an outsider. However as the baby develops with his age, the parents face less and less problem. Eventually even if their hearing sense is reduced temporarily, it will be recovered soon.
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