Nasal breathing helps filter dust and allergens, thanks to tiny hair-like structures in the nose.

Research on the effects of exercise in low-oxygen environments on the brain demonstrated that cognitive performance worsens when lower-than-usual amounts of oxygen are carried by the blood.

When physically demanding activities are performed at high altitudes or in other low-oxygen environments, excellent coordination, judgment, and decision-making are important. In some cases, such as ...

Breathing technique plays an important role in exercise performance, especially during high-intensity workouts. Although the human respiratory system is predisposed to switch to mouth breathing, ...

Exercise normally boosts the body’s ability to use oxygen, a key marker of health and longevity — but high blood sugar can block that benefit. Researchers found that a ketogenic diet helped mice ...

You might know your weight, your step count, or even how much you can lift at the gym. But do you know how fit your heart and lungs really are? Cardio fitness, or the cardiovascular endurance, ...