I just played "Journey to a Wild Divine". This 'game' comes with a special device that you connect to three fingers. It measures your blood pressure (i assume), and in the game you learn how to control your breath and to relax. I did not spend a lot of time with it (hey, no stress here ;-)). The sensors do work, but i found it hard to control. But maybe that's just me unable to relax ;-). I am curious what would happen if i would spend more time with the game; maybe i would be able to better relax. But: life goes on, hurry, hurry, no time to test ;-)...