Traveling, especially overseas, means extremes and compromises, so it's all about resiliency and bouncing back after lost sleep, crossed time-zones, and crazy schedules," says Wurwand. "For me, it's important to stay fit and work out, even when I travel for business, so that I have the stamina to meet the challenges that get thrown at us. Before I fly, I take loads of Vitamin C, oregano oil, and stay hydrated. Then, I try and follow my three R's: Reset, Recharge, and Rest.