Hairs

That child's constant screaming gives me gray hairs.

Fiber-optic cables are made up of tiny glass fibers which are as thin as human hairs.

Don't split hairs.

How many hairs are there in a cat's tail?

He has unsightly hairs growing out of his ears.

How many hairs does a human being have on his head?

You're splitting hairs.

As they ran, their arms turned into legs, their faces lengthened into snouts and their backs became covered with long gray hairs.

The hairs on the violin bow should not be too taut.

You just complicate the argument when you split hairs that way.