Changes

[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.]<ref>https://old.reddit.com/r/biofeedback/</ref><ref>https://en.wikipedia.org/wiki/Biofeedback</ref><ref>https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2939454/</ref>  Like [[Meditation]]

[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.]<ref>https://old.reddit.com/r/biofeedback/</ref><ref>https://en.wikipedia.org/wiki/Biofeedback</ref><ref>https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2939454/</ref>  Like [[Meditation]]

FOCI<ref>https://fociai.com/</ref> device. [[Focus]] training by coherent and incoherent beeps and measuring breathing. 150$

FOCI<ref>https://fociai.com/</ref> device. [[Focus]] training by punishing the brain with incoherent beeps and measuring focus through breathing though pressure on belt. 150$