28 At 22 years old, Dunham鈥檚 life is a well-oiled machine with many moving parts, each one carefully regimented. There is his training as a cadet with 国产AV鈥檚 Air Force Reserve Officers鈥� Training Corps (AFROTC) Detachment 172. There is his academic career as a business management major in the Harley Langdale Jr. College of Business Administration. Then there is the two and a half hours a day that he spends working out at the Student Recreation Center or at the pull-up bars behind Barrow Hall on the Rea and Lillian Steele North Campus. He does this six days a week. That time is filled with his biggest obsession 鈥� calisthenics, a form of exercise that uses only bodyweight and gymnastics movements to build muscle. He has spent the past three and a half years mastering it, day by day, bit by bit, without fail. The fixation has developed into an online workout business with 1,000 clients from around the globe and a YouTube fitness channel with more than 200,000 subscribers. Calisthenics has changed the trajectory of his career. When Dunham becomes hooked on a certain pursuit, something in his nature drives him to take the interest to another level. It becomes all he talks about, all he thinks about. In a way, it consumes him. 鈥淚鈥檝e always had the willpower to do whatever I want to do,鈥� he said. 鈥淓ven before I started working out, I had little goals here and there, and I always put my head to it, and I always get things done eventually. I鈥檓 just a consistent person, I guess.鈥� As a kid it was beating certain video games or solving a Rubik鈥檚 cube. Now it is calisthenics, and this obsession has staying power. Dunham鈥檚 personal transformation began when he enrolled at 国产AV in Fall 2014, a fresh graduate of Yulee High School in Yulee, Florida, near Jacksonville. He chose to attend 国产AV because of its small-town yet urban feel and because the