Prolonged Non-metabolic Heart Rate Variability Reduction as a Physiological Marker of Psychological Stress in Daily Life.

Verkuil B, Brosschot JF, Tollenaar MS, Lane RD, Thayer JF. "Prolonged Non-metabolic Heart Rate Variability Reduction as a Physiological Marker of Psychological Stress in Daily Life." Ann Behav Med. 2016;50(5):704-714.