The Real ID deadline is really here this year. Here's what you need to know if you plan on traveling this summer or beyond.

What are the benefits of interval training? When we first start running and begin to improve the time we are able to ...

What is interval training, and how could walking intervals boost your health and fitness? - From the benefits to who can do it and how to get the most out of it for your body, here’s our expert ...

Similarly to HIIT (high-intensity interval training), it involves periods of all-out effort, but the rest periods in sprint interval training are typically longer than those during HIIT.

Is interval training the secret to staying young? Dr. Richard Besser discusses a new study, and trainer Chris Powell demonstrates some high-intensity interval training moves you can try at home.