The untold science behind Kilian Jornet’s epic feat

[@nicolasm.3708]

This is crazy. This guy isn’t human

[@go90north]

Insane... 😅

[@FaiscaaaH]

I never seen Killian that slim, he was a man on a mission 💪🦵💪🦵

[@go90north]

Last year in the Pyrenees challenge he lost a few kilos, this year he has kept it off, but yes, he looks thin. And he has arrived in a beastly shape, he commented that he could have followed that rhythm for a few more days... incredible...