Background Heart rate variability (HRV), a measure of cardiac autonomic nervous system
functioning, has emerged as a physiological indicator for emotional regulation and …

Fatigue is a prevalent problem in the workplace and a common symptom of many diseases.
However, its relationship with the autonomic nervous system, specifically with sympathetic …

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 …

Objective: There is a reciprocal association between major depressive disorder (MDD) and
coronary heart disease (CHD). These conditions are linked by a causal network of …

Background The autonomic nervous system sends messages through the sympathetic and
parasympathetic nervous system. The sympathetic nervous system innervates the …

Human performance optimization of tactical personnel requires accurate, meticulous, and
effective monitoring of biological adaptations and systemic recovery. Due to an increased …

Background: Heart rate variability (HRV) mirrors cardiac autonomic modulation, an index of
well-being. Reduced HRV has been reported in depression, but few studies investigated …

Components of heart rate variability have attracted considerable attention in psychology and
medicine and have become important dependent measures in psychophysiology and …

The present meta-analysis aimed to quantify current evidence on sex differences in the
autonomic control of the heart, indexed by measures of heart rate variability (HRV) in healthy …

Depression occurs in people of all ages across all world regions; it is the second leading
cause of disability and its global burden increased by 37.5% between 1990 and 2010 …