The Polar Loop launched in early September 2025 as a subscription-free alternative to the Whoop band. This is a little over a ...

Heart rate variability measurements can tell us a lot about our state of readiness to train and are central to optimising ...

Garmin and Whoop devices (among others) display a stress score, but the science doesn't really add up. Here's how to actually make those scores useful.

Objective: To evaluate the Heart rate variability (HRV) in different blood pressure populations, analyze its influencing factors, rank their importance, and propose targeted health strategies. Methods ...

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 ...

Regulating your breathing can help lower your heart rate while running. Staying hydrated helps to keep your heart rate lower during exercise. Avoiding stimulants like caffeine can prevent an increase ...

1 Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Yaoundé, Cameroon. 2 Cardiology Unit, Central Hospital of Yaoundé, Yaoundé, Cameroon. 3 Faculty of Medicine and Pharmaceutical ...

Metabolic Syndrome (MetS) affects ~35% of the adult population in the US and increases the risk for cardiovascular complications and all-cause mortality. Altered heart rate variability occurs with ...

Abstract: A set of new features focussing primarily on different dynamic properties of heart rate variability was defined and investigated within the scope of the CinC 2002 challenge. The objective of ...