Why can't some people(mostly older) hear lofty pitches?
Answers: Due to hearing harm over time. Noises that are a little too loud can filch small tolls on your hearing respectively time. Each occurrence of a bit horn blow, street repair, or TV turned up too loud does it's own bit of damage.... and too lots little things add up to a pretty significant amount of damage.
Typically the first sign of audible range damage is the superior pitches, and most other sounds follow in right at the back.
There are hair cell in the cochlea (inner ear), and as soundwaves enter the cochlea, they hit the hackle cells... And since glorious pitch hair cell are right there at the setting up of the cochlea, they are the first to become damaged over time as they are struck first by the sounds. The lower pitches spike cells are further inside the cochlea.
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