Heart rate variability (HRV), the beat-to-beat variation in either heart rate or the duration of
the R–R interval–the heart period, has become a popular clinical and investigational tool …

Fields studying movement generation, including robotics, psychology, cognitive science,
and neuroscience utilize concepts and tools related to the pervasiveness of variability in …

Lower heart rate variability (HRV) is associated with a higher risk of cardiovascular events
and mortality, although the extent of the association is uncertain. We performed a meta …

Cytokine production by the immune system contributes importantly to both health and
disease. The nervous system, via an inflammatory reflex of the vagus nerve, can inhibit …

The mammalian immune system and the nervous system coevolved under the influence of
infection and sterile injury. Knowledge of homeostatic mechanisms by which the nervous …

Heart rate variability (HRV) is a noninvasive, practical and reproducible measure of
autonomic nervous system function. A heart rate that is variable and responsive to demands …

Certain abnormalities of autonomic function in the setting of structural cardiovascular
disease have been associated with an adverse prognosis. Various markers of autonomic …

Results: 21 studies were identified as eligible for subsequent analysis. Among these studies
5 large trials were eligible for metanalysis:“they included 3489 total post-MI patient with an …

Abstract Study Objectives: Nocturnal cardiovascular events are more frequent at the
beginning and end of the night. It was proposed that this pattern reflects the nocturnal …

Sudden cardiac death resulting from ventricular tachyarrhythmias remains the leading cause
of death in industrially developed countries, accounting for between 300,000 and 500,000 …