For an organ that creates the entire experience of pain, the brain itself is surprisingly numb. It has no pain receptors. Touch a brain, slice it, prod it - the brain feels nothing.
This is incredibly useful for surgeons. In a procedure called “awake brain surgery,” doctors operate on a person’s brain while they’re conscious and talking, so they can map out which parts control speech, movement, or memory. The patient might be having a chat about their favorite music while a surgeon’s scalpel touches their cortex.
What you feel is pain that the brain makes - the brain receives signals from nerves all over your body and decides what to call pain. The scalp, skull, and the lining around the brain (meninges) do have pain receptors, which is why a headache hurts. But the actual brain tissue inside? It’s the silent processor that interprets pain for everything else.
