Endurance is the ability of an organism to exert itself and remain active for a long period of time, as well as its ability to resist, withstand, recover from, and have immunity to trauma, wounds, or fatigue. It is usually used in aerobic or anaerobic exercise.

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What's the most effective way to improve cardio endurance?

How can I build/improve my cardio as quickly and efficiently as possible? I am not interested in weight loss or burning calories, just in allowing me to run for longer amounts of time without taking ...