People who regularly engage in significant amounts of exercise, as endurance athletes do, may develop enlarged hearts. While ...

Exercise made 40-year-olds' brains look younger in 12 months, but the biological mystery remains: fitness gains didn't ...

VO2 max is an intimidating word for an easy-to-understand biometric: It’s how well your body uses oxygen when you push ...

I just hit 20,000 steps!" my husband exclaims as he brags when his fitness tracker exceeds the oft-heard benchmark of 10,000 steps per day. Although I rarely get that many steps, I use my ...

Key Takeaways Strong heart health means your heart and blood vessels, aka your cardiovascular system, are working efficiently ...

Slower heart rate recovery before PCI independently predicts periprocedural myocardial infarction and may improve cardiac risk assessment.

High-intensity interval training is important, but coming back to your breath can be crucial to helping you train.

Choosing your pace based on the physiological transition from easy to hard is more effective than calculations based on maximum heart rate, research shows.