A new study published in the journal of Frontiers in Endocrinology revealed that low 25-hydroxyvitamin D [25-(OH)D] levels ...

If you wear a fitness tracker, you've likely seen a stat labeled "HRV" pop up on your screen. But what does it mean, and does ...

Heart rate variability (HRV) is reported increasingly ... include pNN50 (the percentage of IBIs that differ by more than 50 ms from the previous IBI), and parameters from power spectral analyses ...

Heart rate variability (HRV) is an increasingly key ... which is measured in milliseconds (ms) from the longest sleep period over the past 24 hours. Basic Fitbit users can see the HRV trend ...

It’s become popular with celebrities and on social media, but experts are warning parents about the serious risks of this ...

Acer Gadget, a subsidiary of Acer, has unveiled two new devices at COMPUTEX 2025 — the Acer FreeSense Ring and Acer AI TransBuds.

Whoop study finds resting heart rate and heart rate variability could tell you more about your reproductive health, hormones ...

A new study from Mass General Brigham researchers reveals that heart rate complexity could serve as an early indicator of cognitive decline in older adults. The research, published in the Journal of ...