Wait, I'm not entirely sure about the exact years of her competitions. Let me think again. The 1996 Olympics might have been her last chance, but the heart issue forced her to withdraw or not compete. That's a pivotal moment in her career. That's a strong point to emphasize.
Her sister Crystal continued on but faced her own challenges. Laura's story is about overcoming obstacles and then moving on to other pursuits. Maybe she became a physiotherapist or coach? I'm not sure. Alternatively, maybe she worked in community sports. I should mention her advocacy work if there's any.
I need to structure the essay to flow logically, from introducing her, discussing her career, the challenges she faced, and her post-retirement activities. Highlight her partnerships with her sister and the significance of their relay successes. Make sure to tie her legacy to broader themes in sports, like teamwork and resilience.