Holly ZimmermannHolly Zimmermann is an American extreme sports athlete, taking part in events ranging from mountain and desert ultras, mud runs, and endurance bike races to running a marathon in the Arctic. She holds a master's degree in Mechanical Engineering as wel as an MBA and worked for many years in research & development for military applications before moving to Germany where she now lives with her husband and four children. Holly is an enthusiastic vegan and encourages a healthy lifestyle through motivational speaking in companies and at sporting events. Read More Read Less