Cranial Implant

A device installed directly into the brain, designed to stimulate the individual's endorphin production.

When authorized by the Kage, exponents of the Mutsu Sabaku Sasori were fitted with a cranial implant, of supposed biotechnological origin, that stimulates the production of endorphins, allowing for greatly enhanced pain tolerance.

Installed in the pleasure regions of the brain, in a manner that renders extraction nigh-infeasible, the implant activates only when enduring significant pain, such as torture. Design for short term applications, prolonged use will result in considerable damage to the individual's leukocytes and cause a lethal build up of toxins in the lymphatic system.