Susan Winder, 57, is training for 2062—the year of her own Centenarian Olympics. When that year comes, she still wants to travel, garden, play with her great-grandchildren and move around comfortably. These are things she does now. But she’s getting fit to make sure she can still do them in 43 years. “I walk two to five miles every day. I do some strength training and flexibility work,” Wilder, CEO and founder of a family medicine practice in Arizona, US, told BBC. “Every choice I’m making I’m thinking about things that work in my favour. It’s about self-preservation.” When just surviving for a century is a worthy goal for most, others like Susan have set themselves targets for when they reach 100: staying healthy, active and able.