Excerpts from this story referencing "hearing impairment":
"… osure over his career. Peworski was exposed to several factors that cause hearing impairment for military personnel: loud noises from trucks and helicopters, as well a …"
"… amages lungs and intestines is 56-76 psi. Another feature of blast injury/hearing impairment is that it likely will show up later, often as part of blast-induced traum …"