Cranial Electrotherapy Stimulation (CES) devices use sub-sensory current (millionths of an amp) that acts on the body's naturally occurring electrical impulses in an attempt to decrease pain, improve mood and facilitate the healing process.
CES devices typically deliver the electrical stimulation through electrodes that are attached to the person's (or animal's) ear lobes. It is hypothesized that CES stimulates the hypothalmic area of the brain, causing it to manufacture various neurohormones (like endorphins) that affect moods, emotions and cognitive capabilities.