We're a tad skeptical that an app and a sensor can help you destress and "rebalance the mind and emotions," but give HealthMath the benefit of the doubt for the moment. The company's new Inner Balance app and accompanying sensor use emWave technology to monitor stress levels -- which primarily means monitoring your pulse. The app then helps guide you towards "an optimal state in which the heart, mind and emotions are operating in-sync" through exercises. The monitor clips to the users earlobe and plugs into an iOS device via a standard, old-school 30-pin connector. The app, for its part, spits out a "coherence" reading al
