Michel Cadieux, Age: 59
SVP, Human Resources, Itron

Overweight and overworked, Cadieux got a wake-up call from his doctor during a physical in 2006, when his cholesterol was โ€œoff the charts.โ€ At the time, the human resources executive was commuting from his home in Toronto to Austin, Texas, every week working on a corporate integration. โ€œWhen I finally moved to Austin, I realized I needed to change my life.โ€ Cadieux joined running groups and began losing weight. He signed up for a โ€œrookie triathlonโ€ with a neighbor and loved it so much that he signed up for seven more. The following year, he completed Ironman Texas 70.3 and in 2015 completed Ironman France 140.3 in Nice. This summer heโ€™s going to Ironman Austria. Cadieux, who was diagnosed with type 1 diabetes at 55, helps to manage his condition with diet and exercise. But the benefits of staying fit are mental as well as physical. โ€œI do a lot of introspection when Iโ€™m running,โ€ he says. โ€œIโ€™m a better husband, family person and executive.โ€

GETTING IN THE GAME: You shouldnโ€™t jump into triathlons unless you have a swim or cycling backgroundโ€”and a network of knowledgeable people is critical. โ€œStart by tackling one or two of the sports,โ€ says Cadieux. โ€œThen do a sprint [short] triathlon to see if you like it. Work your way up to an Olympic tri, then a Half Ironman and finally a full Ironman.โ€