Breathlessness on ascending stairs is mostly thought of as a result of poor stamina and lack of exercise. It may also be ...

High environmental heat and physical exertion combine to limit oxygen delivery to the heart muscle, raising ischemic risks in ...

Oxygen isn't always a good thing. Of course, people—and most organisms—cannot live without it. But oxygen can also be quite ...

There is broad consensus on the benefits of aerobic exercise training in patients with cardiovascular disease to improve cardiorespiratory fitness and lower the risk of adverse cardiovascular events.

There are a number of things that can help you stick to your fitness plan and stay on the straight and narrow. One of those is support from the people around you. There's a lot to be said for friends ...

Make no mistake: professional tennis players are fit. Among other things, top tennis seeds need to possess explosive speed and agility, full-body power, great hand-eye coordination, excellent shot ...

After a few weeks, these temperatures will be your new normal—and you may enjoy a small performance boost when the weather ...

Veins play an important role in healthy circulation and overall health. Here’s why something as simple as walking can be good for them.

That’s where pulse oximeters come in. These small devices measure your heart rate and SpO₂. They give you another way to understand how your body responds during exercise and recovery. Also, they may ...

VO₂ max may sound like something out of chemistry class, but it's actually an important component of living a long, healthy ...

Canned oxygen promises to boost your performance at altitude. We asked a medical expert if it lives up to the hype, then put ...

Tour organizers initially cited a sinus infection for the recent cancellations, but Stewart later revealed he had been diagnosed with an acute upper respiratory infection that resulted in laryngitis, ...