Exploring the limits of the human being in the toughest competitions

Jumping into the void from 41,150 meters high (Alan Eustace, 2014); diving under ice in the coldest waters for more than 80 meters without more help than your arms (Stig Severinsen, 2013); running without stopping during 6 to 13 hours to cover a total of 512 kilometers with a slope of over 36,000 meters; reaching 335km/h on a bicycle (Bruce Bursford, 1996) or pedaling 2,739 kilometers in just five days (Julian Sanz, 2014). Where are the limits of the human being? How far can we go? Faster, farther, higher, stronger…