The running world is in mourning after a 24-year-old woman collapsed and died near the finish line of the New York City Marathon on Sunday. Now, a U.S. doctor is sounding the alarm for every athlete who pushes their limits.
Rachel Apa, a former Division 1 field hockey star at Bucknell, was competing in her first marathon. She had trained rigorously for months and appeared in peak condition. But late in the race, she texted her father that she was hurting badly. Soon after, she collapsed in Central Park and was rushed to the hospital, where she was pronounced dead Sunday night.
Her father revealed that Rachel died from rhabdomyolysis, a rare muscle condition triggered by extreme exertion, in which muscle fibers break down and release toxins into the bloodstream, potentially poisoning the body. "It's unfathomable," he said. "Perfect health, perfect shape, 24 years old."
While exercise-induced rhabdo is uncommon—about 12,000 cases are diagnosed annually in the U.S., according to a study in BMJ Open Sport & Exercise Medicine—doctors are noticing a worrying trend. The rise of high-intensity fitness trends and social media challenges is encouraging people to test their physical limits in ways that may be dangerous.
Dr. Todd Cutler, an internist at NewYork-Presbyterian/Weill Cornell Medical Center, told Women's Health that ER nurses observed an uptick in rhabdo cases coinciding with the popularity of intense cycling classes. The condition often strikes fit athletes who overexert themselves, especially in hot conditions or without proper hydration.
Runners and fitness enthusiasts have taken to social media to share their own close calls. One athlete wrote on X: "I was diagnosed with Rhabdomyolysis when I was 19 and it nearly killed me. I was jogging in the Texas 105°F heat when I passed out. The doctor said if I'd arrived an hour later, I'd have permanent kidney damage. Please prioritize hydration. Rhabdo is deadly but simple to prevent."
The New York Road Runners issued a statement expressing deep sadness over the loss. "Our thoughts and sincere sympathies are with the runner's family, friends, and the entire running community."
As the marathon community grieves, experts emphasize the importance of listening to your body, staying hydrated, and not ignoring warning signs like extreme muscle pain or dark urine. For those considering their first marathon or intense workout, the message is clear: train smart, respect your limits, and seek medical help if something feels wrong.
Rachel's death is a stark reminder that even the fittest among us are vulnerable. Her memory will live on in the running community, and her story may save lives.



