I carry messages faster than thought from every corner of your body to your brain. I am thinner than a hair yet I can be over a metre long. What am I?

Question

Accepted Answer

A Nerve. Nerve fibres transmit electrical impulses at speeds of up to 120 metres per second. The sciatic nerve, running from the spinal cord to the foot, can be over a metre in length — the longest single nerve cell in the body.

"I carry messages faster than thought from every corner of your body to your brain. I am thinner than a hair yet I can be over a metre long. What am I?"

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