Thanks for this! It's fascinating that researchers are finally getting back to the work along these lines that was done back in the 1970s -- biofeedback researchers found that people can learn to consciously control their blood pressure, blood glucose, and other biological factors if they get real-time feedback. Of course that research was dropped like a hot rock -- the worst nightmare of the medical industry, after all, is people who take control of their own health -- but it's still out there, and still worth reading.