Did you know there’s a number that might let you know how stressed you are, whether you have a cold coming on and how to get into the zone if you’re about to present at a big meeting? You can find ...

Heart rate variability (HRV) is the variation in the time between two consecutive heartbeats over a specific period. Doctors may use HRV as an indicator for certain aspects of a person’s health, ...

The American Heart Association warns that disrupted circadian rhythms, from irregular sleep, late-night meals, or shift work, can raise the risk of obesity, diabetes, and heart disease, while ...