Roy M. Wallack is a Los Angeles Times health and fitness columnist and former editor of Triathlete and Bicycle Guide magazines. A life-long runner and participant some of the world’s toughest running and multisport events, including the Boston Marathon and the Badwater UltraMarathon, the Eco-Challenge and Primal Quest adventure races, the Paris-Brest-Paris, TransAlp Challenge, and La Ruta de los Conquistadores road and mountain bike endurance races, and the TransRockies Run, he finished second in the World Fitness Championship in 2004. Wallack is a contributor to Outside, Men’s Journal, Runner’s World, Competitor, Bicycling, Mountain Bike, and many other publications, and the author of The Traveling Cyclist: 20 Worldwide Tours of Discovery (1991) and Bike for Life: How to Ride to 100 (2005), which lays out a plan for athletic longevity through cycling.