Biofeedback

[Biofeedback is the process of becoming aware of various physiological functions using instruments that provide information on the activity of those same systems, with a goal of being able to manipulate them at will. Processes that can be controlled include brainwaves, muscle tone, skin conductance, heart rate and pain perception.] Like Meditation

FOCI device. Focus training by punishing the brain with incoherent beeps and measuring focus through breathing though pressure on belt. 150$ Exports mood but not breathing rates!