New research suggests that variety—not just quantity—of physical activity may be key to longevity, with people who mix different types of exercise showing the lowest risk of death from any cause.

Regardless of the intensity of exercise you prefer, keeping a consistent routine can keep your heart healthy. Klaus Vedfelt/DigitalVision via Getty Images Aerobic exercise like jogging, biking, ...

The debate about how hard to push during exercise has persisted for decades, with fitness approaches swinging between high-intensity interval training and gentler, steady-state activities. However, ...

Walking, especially solo walking, requires a certain tolerance for being alone with your thoughts. There's no instructor, no ...

Experts discuss the small but promising study.

And, here's how to find your sweet spot for timing.

Low-intensity training is great for you, no matter what your fitness-tracking gadget says.

Experts explain what to know about the training method.

High intensity interval training (HIIT) may be the optimal exercise for reducing body fat while maintaining muscle mass in ...

New research is underway to test whether a combination of high-intensity interval training and generic medicines can slow ...

Walk or jog? Two-pound weights or 20? Fast-paced, sweaty, cardio workouts or stretching? Just what level of intensity do you need from physical activity to experience the most benefits -- whether it's ...

There are a million and one workout routines out there, but which one is right for you?  Here's how to structure your weekly ...