It's Not Black & White: Amanda Vestri on Trusting Her Training, Embracing Discipline & the Power of Rest

This week, I'm sitting down with professional runner Amanda Vestri, and she opens up about the mental grit required to perform at the highest level, the tricky balance between self-criticism and self-appraisal, and how she's learning to celebrate her wins while staying hungry for future gains. We talk her impressive 2:24 PR at the Boston Marathon-only her second time tackling the 26.2-mile…