It’s been known for decades that heart rate variability (HRV) during labor signals how a fetus is responding to stress. Lower HRV—a lower variation in heartbeats—is even a risk factor for sudden ...

HRV biofeedback training improved myocardial blood flow in coronary heart disease patients, showing potential as a lifestyle intervention for heart failure risk reduction. The randomized pilot trial ...

What is heart rate variability (HRV)? As popular as the metaphor may be, a healthy heart doesn’t beat as regularly as a metronome. In fact, it changes its rhythm with each beat. Heart rate variability ...

A post hoc analysis found that the effect of transcutaneous auricular vagus nerve stimulation (taVNS) on cardiac and inflammatory stress responses was critically dependent on variability in baseline ...

Emotional connection enhances interaction in human relationships. Emotional synchronization in the interaction between a child and a parent is essential for affective attachment. The relationship ...

The rhythmic beating of your heart tells a more complex story than most realize. While standard health assessments typically focus on heart rate, the subtle variations between individual heartbeats ...

Some physical diagnostic baselines for equestrians are likely different from those for athletes in other sports, researchers at the University of Miami have found BYU’s ‘success rate’ leads the nation ...