Why does a hair-cut not hurt?

Why does a hair-cut not hurt?All our senses are controlled by our nerves, which carry their messages to the brain. Therefore, any part of us that has nerves also has a sense of feeling. We might fall and cut ourselves, or have a tooth that aches. We are made well aware of pain because the damaged parts contain nerves. Our hair, however, does not contain nerves and so there can be no sense of hurt when it is being cut.

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