When it comes to fitness, many people stick to one go-to activity—running, cycling, or lifting weights. But a large U.S. study tracking more than 110,000 adults over 30 years found that those who ...

New research suggests that people who combine multiple forms of physical activity may gain even greater health and longevity ...

This combination of exercises is a way to work in some basic strength-training lifts with typical calisthenics and cardio events seen in military testing. You can do the full workout below or the ...

Many sportspeople do a mixture of exercises to boost their performance. Now there’s evidence that this cross-training could extend their lives, too. An analysis of two studies that followed people for ...

P.T.s break down the research.