My Comment to above article:
You are trying to deal with human emotions through only biology. In western civilization they consider humans as only biological machines or animals. They can’t understand that emotions , spirituality and feelings are things that are not measurable through body signals data. Humans are more than biological animals. They have souls and spirits . And these things have no connection whatsover to the human mortal body that vanishes after death. Spirit and Soul are eternal not like the body. At least that’s what some people -like me- believe.
The comments section of the above article contains some interesting discussion : http://www.technologyreview.com/news/508716/wrist-sensor-tells-you-how-stressed-out-you-are/#lf_comment=48803362