Early in 2015, the electronics conglomerate Hitachi unveiled a new badge which can measure “happiness” in the workplace, using an algorithm based on various aspects of physical activity, including how quickly and how often a person nods, stands, walks and other movements. Similar technology using wristbands has also been developed in the past. The company is marketing the new technology to employers as a way of aggregating overall happiness in the workplace, rather than singling out the moods of any individual employees. While the ethics of employers using this technology are dubious, the science behind these happiness measurements has also been questioned.