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Effects of heart rate variability biofeedback training on psychological state and cardiac autonomic regulation in stressed people

Psychological stress is common in our fast‐paced society and strongly influences mental and physical well‐being. Specific training methods have been recently proposed to deal with the negative effects of stress. heart rate variability biofeedback training, a method whereby the subject controls an unusually breathing rate to reach cardiac coherence, has been shown to reduce anxiety and improve cardiac autonomic dynamics in diseased people as well as in young competitors. The present study was designed to examine the effects of short sessions of biofeedback (BFB) training in subjects classified as being severely stressed.