Your Training Has to Adapt as You Age — Or You’ll Stall | Susan Hunt, 68

What if staying athletic for life isn’t about doing one thing really well — but learning how to start over, again and again? Susan Hunt has spent the last four decades doing exactly that. She describes herself as “very average” — yet she’s completed Ironman triathlons, raced the Eco-Challenge in Borneo, run the Marathon des Sables across the Sahara, and summited Mount Everest at 53. Now at 68, she’s still competing — recently winning her age group at a Half Ironman and qualifying for the Worl...