Peter Attia· MD
it was the probably the hardest alter a single day ultra I ever did because it's just so monotonous you run a quarter-mile track quarter-mile track Clea maca collagen you know South San Diego running 24 hours just going to you you looked forward to every four hours or every six hours they change direction they blow whistle and you crossed that ship tracking was and then you change direction and you'd run the other direction for hours that's what you look forward to hmm