Lesley Paterson is a three-time world champion triathlete, professional mountain biker, coach, motivational speaker, reluctant fitness model, and foul-mouthed Scotts lassie. Growing up in Scotland, Lesley was the only girl who played rugby on an all-boys team. When boobs appeared she was banned from playing with the boys so she started competing in running and triathlon. Lesley went on to become a national champion in cross country and an international triathlete. With her husband, Dr. Simon Marshall, an international expert in mental toughness and exercise behavior change, Lesley owns Braveheart Coaching – a San Diego-based company that trains endurance athletes to be faster and happier.