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

Background: Heart rate variability (HRV) is a non-invasive indicator of autonomic nervous system function and is increasingly used in athlete monitoring. While electrocardiography (ECG) is the gold ...

Investors seeking both safety and growth appear to have reached an unexpected consensus in 2025, that of bitcoin BTC $89,805.24 failing to capture either trade. This sentiment is evident in a ...

New data released by Polar suggests a clear shift in global fitness habits in 2025, with users moving away from casual, ad hoc exercise toward highly structured, data-driven training plans. In its ...

1 School of Public Health, Physiotherapy and Sports Science, University College Dublin, Dublin, Ireland 2 institute for sport and health university college dublin, dublin, Ireland The final, formatted ...

You can trust Cyclingnews Our experts spend countless hours testing cycling tech and will always share honest, unbiased advice to help you choose. Find out more about how we test. Not everyone needs a ...

The Earth's polar vortex is strengthening, signaling a gradual cooling and a more active storm track across the northern U.S. North Carolina's first freeze typically occurs between late October and ...

Indiana can expect dry temperatures around the state at the beginning of October. Although fall kicked off earlier this week, it'll be a little while before we are affected by a polar vortex. Hoosiers ...

The polar vortex, a mass of cold air over the Arctic, is beginning its seasonal strengthening. A strong polar vortex typically keeps the coldest air locked near the North Pole. A weaker or wobbling ...

The polar vortex is beginning to stir, signaling a gradual shift toward cooler, autumnal weather in the northern U.S. While temperatures are expected to cool, the Climate Prediction Center forecasts ...