More recently, scientists have started looking at biofeedback as a treatment for anxiety disorders. A 2018 study in the journal Stress found that biofeedback lowered symptoms of burnout and improved math performance among a group of college students. Boston University’s Hofmann co-authored a 2017 research review that found biofeedback based on heart rate variability — a measure of the time between heart beats — could produce a large drop in self-reported stress and anxiety.
It’s possible that biofeedback, by giving people a real-time look at the internal workings of their nervous system, can facilitate these self-calming practices.
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