Why do we get an itch in the first place?
The Itch Alarm
Why do we get an itch in the first place?
You're sitting perfectly still, minding your own business, when suddenly — there it is. An itch on your arm. A tickle on your ankle. Your nose demands attention immediately. What is going on? Why does your body do this?
Your skin is covered in tiny nerve endings — millions of them — like an invisible alarm system wrapping your entire body. These nerves are professional messengers. They send reports to your brain all day long: "Temperature normal here!" "Pressure detected!" "Something's touching us!"
