Researchers from Massachusetts (USA) have proposed an alternative point of view on the development of presbycusis - the gradual loss of hearing as the human body ages. Previously, it was believed that this is a multifactorial process and aging itself is to blame, which we do not know how to fight with. However, American scientists have a different opinion - they put the main blame on the wear and tear of the part of the inner ear with hair cells. And they already know how to treat them.
A detailed study of the structure and damage to the inner ear is possible only with a postmortem autopsy. American scientists were able to collect audiograms of 120 subjects during their lifetime, and then conduct an autopsy and compare the two types of data. They found a clear relationship between hearing impairment and destruction of the hair cell layer. And it does not at all intersect with other factors of aging, which means that the point is not in abstract aging, but in the state of a specific part of the body.
Hair cells suffer and die from ordinary noise - the longer and stronger the effect, the more traumatic it has on the cells. Like any living tissue, they cannot resist stress forever and not be damaged. Therefore, our task is to consciously take care of protecting the inner ear from strong and frequent noise. If you take care and avoid too loud sounds, you can save most of the hair cells by old age, and with them good hearing.
On the other hand, it will still not be possible to completely avoid noise during life, and therefore you need to think about helping those who have already lost some of the hair cells. According to the researchers, regenerative hair therapy technologies will come in handy here. However, this is a relatively new area, where there is still a lot of unknown, so it is too early to talk about a specific recipe for senile hearing loss.