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 ...

Cardiologists and athletes often monitor heartbeats as a way to gauge health or fitness. But the most popular formula used to calculate maximum heart rate is inaccurate for women because it's based on ...

PRINTED ON TREADMILLS and exercise bikes in gyms around the world is a simple method for estimating the maximum rate at which your heart should safely beat, in beats per minute: 220 minus your age.

This secret to improving your cardiovascular health and endurance: zone 2 heart rate training. Zone 2 cardio rate training means working in one of five heart rate zones at 60-70% of your max heart ...

Most runners can benefit from monitoring heart rate in different ways during half marathon training. For example, you can use heart rate to set training zones, which will help you dial into the right ...

Although the treadmill is only moving at 4.4 miles per hour, I feel like I cannot possibly go on. The grade just rose to 16.3, and my legs, though barely shuffling, are moving with great difficulty.