Abstract: Provided is a device for relieving headache and pain caused by temporomandibular joint disorders may include: a body having a neck band surroundingly worn on a user's neck, first connectors extending forwardly from both ends of the neck band by first set lengths, and second connectors extending upwardly from front ends of the first connectors by second set lengths; first low frequency electrostimulators disposed on the second connectors and coming into close contact with the temporalis muscles, when the body is worn on the user's head, to apply low frequencies to the temporalis muscles; and second low frequency electrostimulators disposed on the connected portions between the first connectors and the second connectors and coming into close contact with the masseter muscles, when the body is worn on the user's head, to apply low frequencies to the masseter muscles.

Abstract: Provided are an input apparatus and an input method using a human body contact in which an electric current at a contacted part of a human body varies at different parts of the human body, and an input corresponding to the measured electric current is sensed.