Exercise hasn't always been a key element of my life. However ... It's incredible how 30 minutes a day of running transforms your brain into a better version of its past self; it literally ...

And is there a downside to the life that we nonelites never see? "I don't see any downside," she says. "Running is a healthy ... old daughter Piper defaulting into her parents' eating habits.

But just how much better is running? And how can you turn your walk into a run? When considering ... Does it help you live a longer life? The gold standard for assessing fitness is VO2 max ...

Sign up for CNN’s Fitness, But Better newsletter series. Our seven-part guide will help you ease into a healthy routine, backed by experts. After many years of ...

When I couldn’t avoid the blast, I’d plow straight into it ... rather than doing my long run. As delusional as believing I could be faster—and my life would have more joy and meaning ...

Once you’re hooked you can look at upgrading to shoes with better traction ... You get sucked into situations with constant little victories. And yeah, trail running is for everyone.” Katie Hill is a ...