Short, intense bursts are powerful: HIIT showed slightly stronger effects on some cancer-fighting proteins, suggesting that ...

A single session of high-intensity exercise can disturb the body's main stress hormone, leading to less activity after the workout, a lower body temperature, and weight gain, a new study of mice finds ...

In TODAY.com's Expert Tip of the Day, a trainer explains how sled training combines strength training and cardio for an ...

Pushing harder isn’t always better—especially when your goal is to feel good, not just perform.

TOOLBOX: Interval Training is popular in cycling and many other sports. High-Intensity Interval Training (HIIT) involves short periods of hard efforts separated by low-intensity recoveries. Let’s dig ...

It’s a type of high-intensity interval training workout created by Japanese scientist Izumi Tabata. Like other forms of HIIT, it involves periods of exercising intensely with an elevated heart rate, ...

A new study in the European Heart Journal offers new insight into why doing high-intensity exercises could hold the key to ...

High-intensity exercise induces brain-protective effects that have the potential to not just slow down but possibly reverse the neurodegeneration associated with Parkinson's disease, a new pilot study ...

Stair climber workouts can benefit your fitness and your health—here's how they stack up against other forms of cardio.

One woman was admitted with a life-threatening condition called exercise-induced or exertional rhabdomyolysis, rhabdo for ...

An oft-quoted 2010 study suggested that low-intensity exercise is more effective for weight loss than high-intensity exercise. In this study, conducted by researchers at the University of Udine, Italy ...

When country singer Russell Dickerson became a father in September, he vowed he wouldn’t succumb to dad bod. With less time for the gym, he embraced high-intensity workouts and found ways to include ...