Apple announced today at a virtual event that its upcoming Series 6 Apple Watch will include a blood oxygenation sensor, a first for the Apple Watch (but not for the wearable space). As it did with ...

VO2 max is the maximum amount of oxygen your body can take in, transport, and actually use during intense exercise. This is ...

If you're a fitness fiend or working to improve your health, you're probably always looking for ways to run faster and farther, train harder and push your limits. You might even already track a number ...