"It feels like glass running through your veins." Faith Adjei-Sarpong lives with sickle cell disease and, like many others ...

Long-distance trail running and extreme cardio activity led to red blood cell damage, per a new study. Here, doctors explain ...

My Blood, Your Blood, a new children's book by author and producer Laura Henry-Allain MBE and illustrated by Zenovia Grant, is full of heroes. Based on the real-life experience of 13-year-old Angel ...

A recent study delves into the science, but doctors say there’s more to it.

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, ...

Extreme endurance running damages red blood cells in ways that may affect their ability to function properly, according to a study published in the American Society of Hematology's journal Blood Red ...

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

Your morning coffee might do more than wake you up – it could weaken donated blood. A large new study shows caffeine lowers red blood cell quality, making transfusions less effective, especially in ...

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

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 ...

Scientists have long known that people living at high altitudes, where oxygen levels are low, have lower rates of diabetes ...

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