Do ultramarathons affect males and females differently? How does this impact performance and training? This episode of the KoopCast explores that question with Nick Tiller PhD and coach Corrine Malcolm. We use Nick’s recent paper ‘Sex-specific physiologic responses to ultramarathon.’Nick on TwitterNick’s websiteCorrine on TwitterCorrine on InstagramBuy Koop’s new book on Amazon or AudibleInformation on coaching-www.trainright.comKoop’s Social MediaTwitter/Instagram- @jasonkoop