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, ...

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.

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, ...

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

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

High-intensity training is generally characterized as a training style that involves periods of exercising intensely with an elevated heart rate alternated with recovery periods. It's typically done ...

You don't have to do everything the hard way.

Experts explain what to know about the training method.

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 ...

New research indicates that exercise intensity may play a key role in helping older adults lose fat without sacrificing muscle. High intensity interval training (HIIT) may offer older adults a more ...

Experts discuss the small but promising study.