The heart and brain have bi-directional influences on each other, including autonomic
regulation and hemodynamic connections. Heart rate variability (HRV) measures variation in …

Posttraumatic stress disorder (PTSD) is characterized by a persistent maladaptive reaction
after exposure to severe psychological trauma. Traumatic events that may precipitate PTSD …

Endothelial nitric oxide synthase (eNOS) plays a critical role in regulating and maintaining a
healthy cardiovascular system. The importance of eNOS can be emphasized from the …

Heart rate variability (HRV) provides indirect insight into autonomic nervous system tone,
and has a well-established role as a marker of cardiovascular risk. Recent decades brought …

Objectives To evaluate the effects of aging, gender and body mass index on the heart rate
variability (HRV), and to compare the patterns of global autonomic regulation (GAR) and …

Background There is consensus that Heart Rate Variability is associated with the risk of
vascular events. However, Heart Rate Variability predictive value for vascular events is not …

Background: Heart rate variability (HRV) is a non-invasive measure of the function of the
autonomic nervous system, and its dynamic nature may provide a means through which …

Our aim was to investigate how circadian adaptation to night shift work affects psychomotor
performance, sleep, subjective alertness and mood, melatonin levels, and heart rate …

A core manifestation of post-traumatic stress disorder (PTSD) is a disconnection between
physiological state and psychological or behavioral processes necessary to adequately …

Heart rate (HR) and heart rate variability (HRV) can be monitored with wearable devices
throughout the day. Resting HRV in particular, reflecting cardiac parasympathetic activity …