This week on The Trailhead, Zoë and Brendan put coach and writer Mario Fraioli in the hot seat with their burning trail running questions.

From "How slow is too slow?" to "When does running become hiking?" we tackle the big, the small, and the existential dilemmas runners face on (and off) the trail. Come for the laughs, stay for Mario's wisdom, and find out why running might just be a Sisyphean project we willingly signed up for.

Check out Mario on the Morning Shakeout.

This episode is brought to you by Arc'teryx Footwear. The Vertex Speed is your new go-to for mountain adventures. Obsessively designed. Athlete-tested. Trailhead approved.

Available online and in Arc'teryx stores.

Catch the Trailhead live at Meet the Minotaur Skyrace in June!