Running is one of the best investments you can make in yourself as you get older—and it’s never too late to start (or start again). Our new program, How to Run Strong at 50+, is designed to help you ...

To make a treadmill workout more effective for weight loss, try high-intensity interval training (HIIT) by alternating short, hard runs with longer recovery walks. Change your treadmill routine often ...

For more than 160 years, the National Academies have provided nonpartisan, evidence-based advice on decisions that affect our nation. Browse the listing of projects and activities to see examples of ...