These days, everyone from the average Susan to the hardcore data-loving wellness enthusiast has the technology to track just about anything in the name of self-optimization. A ring wearable tells you ...

We have just the formula you need to sort what your heart rate training should look like.

Heart rate zones tell you how hard you're working when you're doing cardio (but not strength training). You shouldn't worry too much about them if you're new to exercise, but if you'd like to give ...

These days, it may seem like there’s a million different data points that you’re supposed to keep track of—hello, steps, sleep, and recovery scores!—and it’s difficult to know which ones are worth ...

Cardio exercise is important for a healthy heart and weight loss. Check with your doctor before beginning exercise if you have any medical conditions or are pregnant. When doing cardio, you should be ...

These days, everyone from the average Susan to the hardcore data-loving wellness enthusiast has the technology to track just about anything in the name of self-optimization. A ring wearable tells you ...

That tension becomes especially clear with heart rate zone training, a popular five-tier system that endurance athletes use to measure effort and fine-tune performance. The well-known formula is ...