So what are the effects of normal aging on the ear and what are signs of something more concerning?

I would say typically what happens is we start to lose some high-frequency hearing.

And so often what a lot of people will say, I can hear, but I can't understand.

What happens is we're missing out on some of the high-frequency parts of speech.

In English, those sounds tend to be the S sound.

F, T-H, those sounds help give us the clarity that we need to understand words and distinguish words.

And so when we miss those and we hear all the vowels, it sounds not as clear.

How do we know the difference?