Dr. Jim Henry

If some of these little hairs are damaged by loud noise or by a virus... Now that frequency or that range of frequencies that used to be there is not there anymore.

And the brain is in a steady state most of the time.

So now it's got this loss.

The brain, he says, can respond to this loss of hearing by overcompensating, by upping its activity, filling in the missing frequencies like a phantom limb.

I always remember how you obtained residency in London, how you used to write outside of Buckingham Palace.

Let's wash your feet.

Feet?

Where are your toes?

sort of a heavy piece of red paper, and since January we've made 110,000 of them.