HeartMath is a company that's been dealing with emotional health and stress relief for several years. While I don't go in for measuring one's emotional state with a gadget, I have to say that visiting HeartMath's booth here at CES 2013 was very disarming. They sat me down, and plugged a clip on my ear that was connected to an iPhone. This is HeartMath's new Inner Balance device, an iPhone-enabled heart rate variability detector that works in conjunction with HeartMath's app to try and reach some sort of emotional center.
There is some science here. The ear clip does monitor heart rate information (although accuracy can't really be expected from a measurement like that). When you begin a "
