Why do we itch?

Why do we itch?

Itching is triggered by histamine and other chemicals released by the body in response to irritants, allergens, or nerve signals. These activate itch-specific nerve fibers, sending signals to the brain, prompting a scratching sensation.

Why It Matters

This fact belongs to the general category and contributes to expanding general knowledge. Understanding such facts not only makes you smarter but also helps connect ideas across different fields.

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