Here's the science behind why stubbing your toe is oddly excruciating.
You're rounding a corner in your home when a jolt of pain suddenly shoots through your pinky toe. You let out a yelp and find yourself frozen to the spot, desperately waiting for the throbbing in your stubbed toe to subside.
Painful sensations in the body originate in nerve cells called nociceptors, whose fibers plug into the skin, muscles and internal organs and respond to signals released by damaged cells, according to BrainFacts.org . The part of the cortex that responds to signals indicating touch, temperature and pain curves over the brain, sort of like a headband, and different areas of the headband process sensation in different body parts, according to the medical resource StatPearls .
The initial lightning bolt of pain triggered by the stubbing is relayed by"A-delta fibers" — thin, fat-encased nerve fibers that send signals super efficiently. The dull, aching pain that emerges seconds later arises from less-efficient"C fibers," which have nerve endings that cover a wide area, meaning several toes rather than the tip of one. This pain can worsen if the injury triggers inflammation.
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