It has to do with how the brain processes sound, and how that ability deteriorates as we grow older.

HEALTH
If you find yourself uncomfortable at your local sweat box, there might be a few good reasons why.
It’s not fun to prepare for the inevitable, but it’s important—and you don’t need to be over 60 to start planning.
You may know it as just an olfactory bump on your face, but the human nose is a pretty surprising organ. For example: plastic surgeons can regrow your nose—on your forehead.
We give you permission to skip the gym tonight.