Marathon training used to be all about LSD – long, slow distance — mileage. But as sports scientists, coaches, and athletes have learned more, they've shifted focus toward more intensity, strength training and a focus on nutrition and recovery. 

As a two-time Olympian, world championship silver medalist and 6-time national champion, Nick Symmonds is a true High Lifer. We’re sat down to get the scoop on his newest passions: climbing, marathons and entrepreneurship.