A few of the most important insights are heart rate variability (HRV), which describes the difference in time between the ...

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 ...

NEW YORK (Reuters Health) - Willpower is a lot like muscle strength, a new study suggests -- some of us have more of it than others. And while people may be born with an innate capacity for ...

We know the beat of our heart varies over time, increasing with exertion and slowing with rest or meditation. But, stable as those variations may appear, they vary even within those intervals. Dr.

Even mild dehydration can negatively affect your brain functioning and attention span, so it could be holding you back at work and getting in the way of your goals. Drinking a glass of water could ...