According to Kieran, Zone 2 training plays a critical role in building the aerobic base needed for sustained performance.

Once again accompanied by multihyphenate running nomad Alexi Pappas —a 2016 Olympian, award-winning filmmaker, notable author ...

But gradually Ollearis built up to a half-marathon. After completing the half ... says participating in extreme fitness challenges can help people find a sense of purpose. It sets a goal that ...