The source, "Late Starters: Athletes Redefining Aging and Achievement," explores the growing phenomenon of masters athletes who begin serious exercise later in life and achieve remarkable feats, such as 72-year-old marathon runner Barbara Shoemaker and 102-year-old sprinter Hidekichi Miyazaki. It presents several lessons illustrating that the body adapts to effort regardless of age, citing scientific studies on neuroplasticity and sarcopenia reduction that support continued physical activity well past middle age. The episode emphasizes that late starters benefit from a lack of ego and the powerful influence of community support, suggesting that a growth mindset and process-shaped goals are more important than genetics or past athletic history. Ultimately, the piece argues that age is merely an invitation, not a limitation, encouraging readers to view training as a contagious, life-extending adventure rather than a race against time.