Your body indicates its stress level by muscle contractions in the forehead, neck and scalp. Using space age patented technology, Antense measures these contractions and instantly converts the signal into a pleasant tone-pitch proportional to the level of muscle tension in your body. By listening in on the tension in your body you can control the pitch using the tone as a guide. By learning to feel how stress changes your body, you will quickly understand how to release that tension and stress and learn how to relax at will.