5-MINUTE FRIDAY: An Unhinged 19 Miles On a Treadmill

When NYC air quality made outdoor running impossible, I faced a choice: split up my 19-mile long run, or take on the "unhinged" challenge of tackling it all on a treadmill. In this 5-Minute Friday, I'm talking about the mental gymnastics of long-distance running, why we need to collect "evidence" of our past resilience to get through hard moments, and how I'm balancing running four days a week…