Heart rate variability typically decreases during stressful situations, although the heart rate increases. Managing stress levels can mean a more variable heart rate. Exercise and relaxation ...

Anne R. Crecelius does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

New fitness trackers claim they can go beyond counting people's steps and measuring how long they sleep — now, these devices can tell people when they're stressed out. The goal is to help people ...