Ultramarathons May Harm Red Blood Cells and Accelerate Aging

A study published in 'Blood Red Cells & Iron' reveals that ultramarathons can damage red blood cells, affecting their ability to transport oxygen. The research examined participants of two races, revealing increased cellular stress related to both mechanical and molecular factors. Longer races showed more pronounced damage. Researchers suggest these insights could inform better training and recovery strategies and improve blood storage practices. However, more research is needed, considering the study's limited scope.