Narrator: Stubbing your toe ... pain you feel at the moment of impact. But some nerve fibers called C nociceptors send a slower signal at only 2 m/s. So after a moment's delay, a second wave ...

It’s the middle of the night and you wake up groggily in the dark to go to the bathroom, only to hit your toe on the night table. Why are you in such pain? Is your toe broken? Simply thinking ...

Stubbing your toe hurts ... sudden pain you feel at the moment of impact. But some nerve fibers called C nociceptors send a slower signal at only 2 m/s. So after a moment's delay, a second ...