The scientists revealed that these very commonly used antibiotics caused profound damage to the mitochondria, and this led to a dramatic increase in the production of damaging chemicals called free radicals. (mindbodygreen.com)
Researchers have yet to determine how damaging those chemicals are in the small amounts produced. (discovermagazine.com)
These biologically damaging chemicals can kill the inner ear's hair cells, the ones that sense sound. (sciencenews.org)