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Presbycusis is the most common cause of hearing loss, affecting one out of three persons by age 65, and one out of two by age 75. Presbycusis is the second most common illness next to arthritis in aged people. Many vertebrates such as fish, birds and amphibians do not experience presbycusis in old age as they are able to regenerate their ...
There can be damage either to the ear, whether the external or middle ear, to the cochlea, or to the brain centres that process the aural information conveyed by the ears. Damage to the middle ear may include fracture and discontinuity of the ossicular chain. Damage to the inner ear (cochlea) may be caused by temporal bone fracture. People who ...
Traditionally aging is not considered as a cause of death. It is believed that there is always a more direct cause, and usually it is one of many age-related diseases. It is estimated that, as a root cause, the aging process underlies 2/3 of all death in the world
Hearing loss that worsens with age but is caused by factors other than normal aging, such as noise-induced hearing loss, is not presbycusis, although differentiating the individual effects of multiple causes of hearing loss can be difficult. One in three persons have significant hearing loss by age 65; by age 75, one in two.
It reduces the inflammation caused by the acoustic trauma, which would cause subsequent damages to hair cells. While an anti-inflammatory medication would increase the quantity of anti-inflammatory hormone in the whole body, noise conditioning increases the number of receptors for the anti-inflammatory hormone, and only in the areas where it is ...
Greek -μα (-ma), suffix added to verbs to form nouns indicating the result of a process or action; cf. English -tion: sarcoma, teratoma, mesothelioma: omphal(o)-of or pertaining to the navel, the umbilicus: Greek ὀμφαλός (omphalós), navel, belly-button omphalotomy: onco-tumor, bulk, volume Greek ὄγκος (ónkos) oncology-one ...
One of the most brutal and inhumane crimes of the twentieth century, Emmett Till's racially-charged murder etched his name in history as a catalyst for the Civil Rights Movement.
In law, medicine, and statistics, cause of death is an official determination of the conditions resulting in a human's death, which may be recorded on a death certificate. A cause of death is determined by a medical examiner. In rare cases, an autopsy needs to be performed by a pathologist. The cause of death is a specific disease or injury, in ...