New research published in ImmunoHorizons shows that running a high-intensity interval training (HIIT) workout triggers a more inflammatory immune response than cycling HIIT. These findings could help ...

How often should you do HIIT—and do you really need it? Fitness experts explain how to use high-intensity intervals without ...

For beginners, running your first mile might feel daunting, but interval training can be a great solution. By alternating between movement and recovery, your body learns to adapt while your mind stays ...

We all grow older. There is nothing we can do about that, but the quality of those years is within our control, as recent research has shown. We all grow older. There is nothing we can do about that, ...

While most runners set a goal to get faster, an even more pointed (and beneficial) objective is to improve your VO2 max. Not only does this metric—a measure of how much oxygen you can take in and use ...

A 14-week high-intensity interval training program preserved strength, boosted executive function, lowered blood pressure, ...

A HIIT workout can be tricky to define because, at its core, it just means a string of exercises that gets your heart racing, providing a cardio boost to what would otherwise be a serviceable, but ...

Researchers from the University of Southern Denmark investigated how eight weeks of high-intensity interval training affect the structure of mitochondria—the parts of muscle cells that produce energy.

For many, fitness can feel like a numbers game: how fast you run, how many reps you complete, or how much longer you can push ...