Top 49 Influential Men: Josef Ajram 43

Josef Ajram is one of the most extreme endurance athletes on the planet. The Spanish triathlete and day trader has completed seven Ironmans and three Ultramans, and seems to possess an almost superhuman stamina and desire to push his own limits. At 34, he shows no signs of slowing down and is currently competing in one of the most grueling races on the planet. The seven-day Red Bull Seven Islands challenge consists of seven Ironman-length triathlons on each of the Canary Islands. The distances total up to a mind-boggling 982 miles.