Running extreme distances may strain more than just muscles and joints. New research suggests ultramarathons can alter red blood cells in ways that make them less flexible and more prone to breakdown, ...

Scientists have discovered that red blood cells act as hidden glucose sponges in low-oxygen conditions, explaining why people ...

“It can hit you out of nowhere,” she tells TODAY.com.

A new study describes a technique that rejuvenates aging blood-forming stem cells and could help reduce the risk of age-related blood disorders.

HealthDay News — Ultra-endurance running accelerates red blood cell (RBC) aging through inflammatory and oxidative pathways, according to a study published online Feb. 18 in Blood Red Cells & Iron.

Extreme endurance running damages red blood cells in ways that may affect their ability to function properly, according to a ...

Juan Uribe's 15-year-old son Max needs a perfect stem cell donor match. His story went viral on social media, but the search ...

Scientists have found that a special component in some people's blood provides them with natural protection against malaria.

Each year, approximately 36,000 people are diagnosed with the disease in the United States, according to the American Cancer ...

Your blood cells work tirelessly to keep you alive, carrying oxygen throughout your body and fighting off infections. But hidden in your daily meals are foods that can silently compromise these vital ...