SEATTLE — What if pregnant women could monitor their baby's heart rate using their mobile phone? The idea is not so far-fetched. A University of Washington PhD student is helping develop a smartphone ...

The heart's ability to use oxygen efficiently is a critical indicator of its health, but tests to measure this function have drawbacks that can limit their use. A new Cedars-Sinai Health Sciences ...

Runners, cyclists and gym-goers with wearable fitness trackers are no doubt familiar with the five "heart rate" zones. Ranging from low to very high intensity, these zones are calculated as ...

It's the second Fed day of 2026, and America's economic woes are making headlines. The Federal Open Market Committee announced it would hold its benchmark interest rate steady, as was widely expected.