The number of publications investigating heart rate variability (HRV) in psychiatry and the
behavioral sciences has increased markedly in the last decade. In addition to the significant …

This article evaluates the suitability of low frequency (LF) heart rate variability (HRV) as an
index of sympathetic cardiac control and the LF/high frequency (HF) ratio as an index of …

Cardiovascular variabilities were recognized over 250 years ago, but only in the past 20
years has their apparent utility come to be appreciated. Technological advancement has …

Sudden cardiac death (SCD) remains a daunting problem. It is a major public health issue
for several reasons: from its prevalence (20% of total mortality in the industrialized world) to …

It is generally accepted that the activities of the autonomic nervous system (ANS), which
consists of the sympathetic (SNS) and parasympathetic nervous systems (PNS), are …

Cardiac autonomic neuropathy (CAN) is an often overlooked and common complication of
diabetes mellitus. CAN is associated with increased cardiovascular morbidity and mortality …

Recent trials of intensive glycemic control suggest a possible link between hypoglycemia
and excess cardiovascular mortality in patients with type 2 diabetes. Hypoglycemia might …

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

Frequency analysis of the electrocardiographic RR interval is a common method of
quantifying autonomic outflow by measuring the beat-to-beat modulation of the heart (heart …

This article reviews the mechanism, the parameters and the use of HRV as a marker
reflecting the activity of the sympathetic and vagal components of the ANS on the sinus …