The cold caused my arrector pili muscles to contract, giving me goosebumps.

He is training every day to strengthen his constrictor muscles.

I got goose bumps when I heard that scary story.

This sweater may shrink if you wash it.

This sweater may shrink if you wash it.

On cold days, warm coffee is the best.

On a cold winter night, hot cocoa is the best.

The cold has become severe.

It's very cold today, isn't it?

It's difficult to go outside in this coldness.